39495717 has 6 divisors (see below), whose sum is σ = 57049382. Its totient is φ = 26330472.

The previous prime is 39495697. The next prime is 39495719. The reversal of 39495717 is 71759493.

39495717 is a `hidden beast` number, since 39 + 49 + 571 + 7 = 666.

It can be written as a sum of positive squares in only one way, i.e., 31911201 + 7584516 = 5649^2 + 2754^2 .

It is not a de Polignac number, because 39495717 - 2⁸ = 39495461 is a prime.

It is a super-2 number, since 2×39495717² = 3119823322688178, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39495719) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 2194198 + ... + 2194215.

Almost surely, 2^39495717 is an apocalyptic number.

It is an amenable number.

39495717 is a deficient number, since it is larger than the sum of its proper divisors (17553665).

39495717 is a wasteful number, since it uses less digits than its factorization.

39495717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4388419 (or 4388416 counting only the distinct ones).

The product of its digits is 238140, while the sum is 45.

The square root of 39495717 is about 6284.5617985664. The cubic root of 39495717 is about 340.5519207699.

The spelling of 39495717 in words is "thirty-nine million, four hundred ninety-five thousand, seven hundred seventeen".