39474989 has 12 divisors (see below), whose sum is σ = 42647616. Its totient is φ = 36513288.

The previous prime is 39474977. The next prime is 39475001. The reversal of 39474989 is 98947493.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (39474977) and next prime (39475001).

It is a de Polignac number, because none of the positive numbers 2^k-39474989 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 39474989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39474089) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14252 + ... + 16794.

It is an arithmetic number, because the mean of its divisors is an integer number (3553968).

Almost surely, 2^39474989 is an apocalyptic number.

It is an amenable number.

39474989 is a deficient number, since it is larger than the sum of its proper divisors (3172627).

39474989 is a wasteful number, since it uses less digits than its factorization.

39474989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2624 (or 2605 counting only the distinct ones).

The product of its digits is 1959552, while the sum is 53.

The square root of 39474989 is about 6282.9124615898. The cubic root of 39474989 is about 340.4923346004.

The spelling of 39474989 in words is "thirty-nine million, four hundred seventy-four thousand, nine hundred eighty-nine".