39890695 has 16 divisors (see below), whose sum is σ = 52016832. Its totient is φ = 29191680.

The previous prime is 39890693. The next prime is 39890737. The reversal of 39890695 is 59609893.

It is not a de Polignac number, because 39890695 - 2¹ = 39890693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39890693) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4630 + ... + 10060.

It is an arithmetic number, because the mean of its divisors is an integer number (3251052).

Almost surely, 2^39890695 is an apocalyptic number.

39890695 is a deficient number, since it is larger than the sum of its proper divisors (12126137).

39890695 is a wasteful number, since it uses less digits than its factorization.

39890695 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5562.

The product of its (nonzero) digits is 524880, while the sum is 49.

The square root of 39890695 is about 6315.9080898949. The cubic root of 39890695 is about 341.6833902846.

The spelling of 39890695 in words is "thirty-nine million, eight hundred ninety thousand, six hundred ninety-five".