39769139 has 16 divisors (see below), whose sum is σ = 42928704. Its totient is φ = 36748800.

The previous prime is 39769073. The next prime is 39769157. The reversal of 39769139 is 93196793.

It is a cyclic number.

It is not a de Polignac number, because 39769139 - 2¹⁶ = 39703603 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 39769093 and 39769102.

It is not an unprimeable number, because it can be changed into a prime (39769039) 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, 170567 + ... + 170799.

It is an arithmetic number, because the mean of its divisors is an integer number (2683044).

Almost surely, 2^39769139 is an apocalyptic number.

39769139 is a deficient number, since it is larger than the sum of its proper divisors (3159565).

39769139 is a wasteful number, since it uses less digits than its factorization.

39769139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478.

The product of its digits is 275562, while the sum is 47.

The square root of 39769139 is about 6306.2777452313. The cubic root of 39769139 is about 341.3359748848.

The spelling of 39769139 in words is "thirty-nine million, seven hundred sixty-nine thousand, one hundred thirty-nine".