39799655 has 16 divisors (see below), whose sum is σ = 54782784. Its totient is φ = 27191040.

The previous prime is 39799649. The next prime is 39799663. The reversal of 39799655 is 55699793.

It is not a de Polignac number, because 39799655 - 2¹⁰ = 39798631 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 39799597 and 39799606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8315 + ... + 12195.

It is an arithmetic number, because the mean of its divisors is an integer number (3423924).

Almost surely, 2^39799655 is an apocalyptic number.

39799655 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

39799655 is a deficient number, since it is larger than the sum of its proper divisors (14983129).

39799655 is a wasteful number, since it uses less digits than its factorization.

39799655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4186.

The product of its digits is 2296350, while the sum is 53.

The square root of 39799655 is about 6308.6967750875. The cubic root of 39799655 is about 341.4232581886.

The spelling of 39799655 in words is "thirty-nine million, seven hundred ninety-nine thousand, six hundred fifty-five".