72895937 has 4 divisors (see below), whose sum is σ = 75409620. Its totient is φ = 70382256.

The previous prime is 72895931. The next prime is 72895943. The reversal of 72895937 is 73959827.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 73959827 = 2647 ⋅27941.

It is an interprime number because it is at equal distance from previous prime (72895931) and next prime (72895943).

It can be written as a sum of positive squares in 2 ways, for example, as 28686736 + 44209201 = 5356^2 + 6649^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72895937 is a prime.

It is a super-2 number, since 2×72895937² = 10627635262215938, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72895931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1256798 + ... + 1256855.

It is an arithmetic number, because the mean of its divisors is an integer number (18852405).

Almost surely, 2^72895937 is an apocalyptic number.

It is an amenable number.

72895937 is a deficient number, since it is larger than the sum of its proper divisors (2513683).

72895937 is a wasteful number, since it uses less digits than its factorization.

72895937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2513682.

The product of its digits is 952560, while the sum is 50.

The square root of 72895937 is about 8537.9117470257. The cubic root of 72895937 is about 417.7352340680.

The spelling of 72895937 in words is "seventy-two million, eight hundred ninety-five thousand, nine hundred thirty-seven".