39700839 has 8 divisors (see below), whose sum is σ = 53480560. Its totient is φ = 26194176.

The previous prime is 39700807. The next prime is 39700841. The reversal of 39700839 is 93800793.

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 39700839 - 2⁵ = 39700807 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 39700797 and 39700806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39700879) 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, 67924 + ... + 68505.

It is an arithmetic number, because the mean of its divisors is an integer number (6685070).

Almost surely, 2^39700839 is an apocalyptic number.

39700839 is a deficient number, since it is larger than the sum of its proper divisors (13779721).

39700839 is a wasteful number, since it uses less digits than its factorization.

39700839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136529.

The product of its (nonzero) digits is 40824, while the sum is 39.

The square root of 39700839 is about 6300.8601793723. The cubic root of 39700839 is about 341.1404580714.

The spelling of 39700839 in words is "thirty-nine million, seven hundred thousand, eight hundred thirty-nine".