72610697 has 2 divisors, whose sum is σ = 72610698. Its totient is φ = 72610696.

The previous prime is 72610669. The next prime is 72610709. The reversal of 72610697 is 79601627.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72318016 + 292681 = 8504^2 + 541^2 .

It is a cyclic number.

It is not a de Polignac number, because 72610697 - 2¹⁰ = 72609673 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 72610697.

It is not a weakly prime, because it can be changed into another prime (72610607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36305348 + 36305349.

It is an arithmetic number, because the mean of its divisors is an integer number (36305349).

Almost surely, 2^72610697 is an apocalyptic number.

It is an amenable number.

72610697 is a deficient number, since it is larger than the sum of its proper divisors (1).

72610697 is an equidigital number, since it uses as much as digits as its factorization.

72610697 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31752, while the sum is 38.

The square root of 72610697 is about 8521.1910552457. The cubic root of 72610697 is about 417.1896592920.

The spelling of 72610697 in words is "seventy-two million, six hundred ten thousand, six hundred ninety-seven".