39472894 has 4 divisors (see below), whose sum is σ = 59209344. Its totient is φ = 19736446.

The previous prime is 39472883. The next prime is 39472897. The reversal of 39472894 is 49827493.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39472897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9868222 + ... + 9868225.

It is an arithmetic number, because the mean of its divisors is an integer number (14802336).

Almost surely, 2^39472894 is an apocalyptic number.

39472894 is a deficient number, since it is larger than the sum of its proper divisors (19736450).

39472894 is a wasteful number, since it uses less digits than its factorization.

39472894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19736449.

The product of its digits is 435456, while the sum is 46.

The square root of 39472894 is about 6282.7457373349. The cubic root of 39472894 is about 340.4863110053.

The spelling of 39472894 in words is "thirty-nine million, four hundred seventy-two thousand, eight hundred ninety-four".