39646934 has 4 divisors (see below), whose sum is σ = 59470404. Its totient is φ = 19823466.

The previous prime is 39646931. The next prime is 39646949. The reversal of 39646934 is 43964693.

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 (39646931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9911732 + ... + 9911735.

It is an arithmetic number, because the mean of its divisors is an integer number (14867601).

Almost surely, 2^39646934 is an apocalyptic number.

39646934 is a deficient number, since it is larger than the sum of its proper divisors (19823470).

39646934 is a wasteful number, since it uses less digits than its factorization.

39646934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19823469.

The product of its digits is 419904, while the sum is 44.

The square root of 39646934 is about 6296.5811358228. The cubic root of 39646934 is about 340.9859902570.

The spelling of 39646934 in words is "thirty-nine million, six hundred forty-six thousand, nine hundred thirty-four".