39957465 has 8 divisors (see below), whose sum is σ = 63931968. Its totient is φ = 21310640.

The previous prime is 39957461. The next prime is 39957487. The reversal of 39957465 is 56475993.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 39957465 - 2² = 39957461 is a prime.

It is not an unprimeable number, because it can be changed into a prime (39957461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1331901 + ... + 1331930.

It is an arithmetic number, because the mean of its divisors is an integer number (7991496).

Almost surely, 2^39957465 is an apocalyptic number.

It is an amenable number.

39957465 is a deficient number, since it is larger than the sum of its proper divisors (23974503).

39957465 is a wasteful number, since it uses less digits than its factorization.

39957465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2663839.

The product of its digits is 1020600, while the sum is 48.

The square root of 39957465 is about 6321.1917389049. The cubic root of 39957465 is about 341.8739232966.

The spelling of 39957465 in words is "thirty-nine million, nine hundred fifty-seven thousand, four hundred sixty-five".