39920793 has 16 divisors (see below), whose sum is σ = 58368000. Its totient is φ = 24068880.

The previous prime is 39920789. The next prime is 39920807. The reversal of 39920793 is 39702993.

It is not a de Polignac number, because 39920793 - 2² = 39920789 is a prime.

It is not an unprimeable number, because it can be changed into a prime (39920773) 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, 3528 + ... + 9606.

It is an arithmetic number, because the mean of its divisors is an integer number (3648000).

Almost surely, 2^39920793 is an apocalyptic number.

39920793 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

39920793 is a deficient number, since it is larger than the sum of its proper divisors (18447207).

39920793 is a wasteful number, since it uses less digits than its factorization.

39920793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6292.

The product of its (nonzero) digits is 91854, while the sum is 42.

The square root of 39920793 is about 6318.2903542018. The cubic root of 39920793 is about 341.7693033971.

The spelling of 39920793 in words is "thirty-nine million, nine hundred twenty thousand, seven hundred ninety-three".