72610745 has 4 divisors (see below), whose sum is σ = 87132900. Its totient is φ = 58088592.

The previous prime is 72610729. The next prime is 72610763. The reversal of 72610745 is 54701627.

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

It can be written as a sum of positive squares in 2 ways, for example, as 55413136 + 17197609 = 7444^2 + 4147^2 .

It is a cyclic number.

It is not a de Polignac number, because 72610745 - 2⁴ = 72610729 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7261070 + ... + 7261079.

It is an arithmetic number, because the mean of its divisors is an integer number (21783225).

Almost surely, 2^72610745 is an apocalyptic number.

It is an amenable number.

72610745 is a deficient number, since it is larger than the sum of its proper divisors (14522155).

72610745 is a wasteful number, since it uses less digits than its factorization.

72610745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14522154.

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 72610745 is about 8521.1938717529. The cubic root of 72610745 is about 417.1897512211.

The spelling of 72610745 in words is "seventy-two million, six hundred ten thousand, seven hundred forty-five".