39800929 has 8 divisors (see below), whose sum is σ = 46544960. Its totient is φ = 33321456.

The previous prime is 39800923. The next prime is 39800939. The reversal of 39800929 is 92900893.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 39800929 - 2³ = 39800921 is a prime.

It is a super-2 number, since 2×39800929² = 3168227898526082, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 39800891 and 39800900.

It is not an unprimeable number, because it can be changed into a prime (39800921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65814 + ... + 66415.

It is an arithmetic number, because the mean of its divisors is an integer number (5818120).

Almost surely, 2^39800929 is an apocalyptic number.

It is an amenable number.

39800929 is a deficient number, since it is larger than the sum of its proper divisors (6744031).

39800929 is a wasteful number, since it uses less digits than its factorization.

39800929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132279.

The product of its (nonzero) digits is 34992, while the sum is 40.

The square root of 39800929 is about 6308.7977460052. The cubic root of 39800929 is about 341.4269011732.

The spelling of 39800929 in words is "thirty-nine million, eight hundred thousand, nine hundred twenty-nine".