39697065 has 12 divisors (see below), whose sum is σ = 68808324. Its totient is φ = 21171744.

The previous prime is 39697051. The next prime is 39697111. The reversal of 39697065 is 56079693.

It can be written as a sum of positive squares in 2 ways, for example, as 28164249 + 11532816 = 5307^2 + 3396^2 .

It is not a de Polignac number, because 39697065 - 2⁵ = 39697033 is a prime.

It is a super-2 number, since 2×39697065² = 3151713939228450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 882157 = 39697065 / (3 + 9 + 6 + 9 + 7 + 0 + 6 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 39697065.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 441034 + ... + 441123.

It is an arithmetic number, because the mean of its divisors is an integer number (5734027).

Almost surely, 2^39697065 is an apocalyptic number.

It is an amenable number.

39697065 is a deficient number, since it is larger than the sum of its proper divisors (29111259).

39697065 is a wasteful number, since it uses less digits than its factorization.

39697065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 882168 (or 882165 counting only the distinct ones).

The product of its (nonzero) digits is 306180, while the sum is 45.

The square root of 39697065 is about 6300.5606893355. The cubic root of 39697065 is about 341.1296480153.

It can be divided in two parts, 396 and 97065, that added together give a triangular number (97461 = T₄₄₁).

The spelling of 39697065 in words is "thirty-nine million, six hundred ninety-seven thousand, sixty-five".