72894629 has 8 divisors (see below), whose sum is σ = 74101368. Its totient is φ = 71697600.

The previous prime is 72894617. The next prime is 72894631. The reversal of 72894629 is 92649827.

It can be written as a sum of positive squares in 4 ways, for example, as 7317025 + 65577604 = 2705^2 + 8098^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 72894629 - 2⁸ = 72894373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72894229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13559 + ... + 18155.

It is an arithmetic number, because the mean of its divisors is an integer number (9262671).

Almost surely, 2^72894629 is an apocalyptic number.

It is an amenable number.

72894629 is a deficient number, since it is larger than the sum of its proper divisors (1206739).

72894629 is a wasteful number, since it uses less digits than its factorization.

72894629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4855.

The product of its digits is 435456, while the sum is 47.

The square root of 72894629 is about 8537.8351471553. The cubic root of 72894629 is about 417.7327355248.

The spelling of 72894629 in words is "seventy-two million, eight hundred ninety-four thousand, six hundred twenty-nine".