39081969 has 12 divisors (see below), whose sum is σ = 57765136. Its totient is φ = 25448472.

The previous prime is 39081967. The next prime is 39081983. The reversal of 39081969 is 96918093.

It is not a de Polignac number, because 39081969 - 2¹ = 39081967 is a prime.

It is a super-2 number, since 2×39081969² = 3054800601833922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39081967) 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, 50107 + ... + 50880.

Almost surely, 2^39081969 is an apocalyptic number.

It is an amenable number.

39081969 is a deficient number, since it is larger than the sum of its proper divisors (18683167).

39081969 is a wasteful number, since it uses less digits than its factorization.

39081969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101036 (or 101033 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 45.

The square root of 39081969 is about 6251.5573259789. The cubic root of 39081969 is about 339.3585628416.

The spelling of 39081969 in words is "thirty-nine million, eighty-one thousand, nine hundred sixty-nine".