39496989 has 24 divisors (see below), whose sum is σ = 61733280. Its totient is φ = 22395744.

The previous prime is 39496979. The next prime is 39496993. The reversal of 39496989 is 98969493.

It is not a de Polignac number, because 39496989 - 2⁷ = 39496861 is a prime.

It is a super-2 number, since 2×39496989² = 3120024280132242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39496909) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19467 + ... + 21399.

It is an arithmetic number, because the mean of its divisors is an integer number (2572220).

Almost surely, 2^39496989 is an apocalyptic number.

It is an amenable number.

39496989 is a deficient number, since it is larger than the sum of its proper divisors (22236291).

39496989 is a wasteful number, since it uses less digits than its factorization.

39496989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2089 (or 2082 counting only the distinct ones).

The product of its digits is 3779136, while the sum is 57.

The square root of 39496989 is about 6284.6629981249. The cubic root of 39496989 is about 340.5555766718. Note that the first 4 decimals are identical.

The spelling of 39496989 in words is "thirty-nine million, four hundred ninety-six thousand, nine hundred eighty-nine".