73772065 has 4 divisors (see below), whose sum is σ = 88526484. Its totient is φ = 59017648.

The previous prime is 73772059. The next prime is 73772071. The reversal of 73772065 is 56027737.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (73772059) and next prime (73772071).

It can be written as a sum of positive squares in 2 ways, for example, as 49801249 + 23970816 = 7057^2 + 4896^2 .

It is a cyclic number.

It is not a de Polignac number, because 73772065 - 2³ = 73772057 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 7377202 + ... + 7377211.

It is an arithmetic number, because the mean of its divisors is an integer number (22131621).

Almost surely, 2^73772065 is an apocalyptic number.

It is an amenable number.

73772065 is a deficient number, since it is larger than the sum of its proper divisors (14754419).

73772065 is a wasteful number, since it uses less digits than its factorization.

73772065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14754418.

The product of its (nonzero) digits is 61740, while the sum is 37.

The square root of 73772065 is about 8589.0665965517. The cubic root of 73772065 is about 419.4021444640.

The spelling of 73772065 in words is "seventy-three million, seven hundred seventy-two thousand, sixty-five".