39477969 has 16 divisors (see below), whose sum is σ = 58738240. Its totient is φ = 26205120.

The previous prime is 39477967. The next prime is 39477983. The reversal of 39477969 is 96977493.

It is not a de Polignac number, because 39477969 - 2¹ = 39477967 is a prime.

It is a super-2 number, since 2×39477969² = 3117020072729922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39477967) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3474 + ... + 9540.

It is an arithmetic number, because the mean of its divisors is an integer number (3671140).

Almost surely, 2^39477969 is an apocalyptic number.

It is an amenable number.

39477969 is a deficient number, since it is larger than the sum of its proper divisors (19260271).

39477969 is a wasteful number, since it uses less digits than its factorization.

39477969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6317 (or 6311 counting only the distinct ones).

The product of its digits is 2571912, while the sum is 54.

The square root of 39477969 is about 6283.1496082777. The cubic root of 39477969 is about 340.5009024021.

The spelling of 39477969 in words is "thirty-nine million, four hundred seventy-seven thousand, nine hundred sixty-nine".