39700939 has 4 divisors (see below), whose sum is σ = 39781000. Its totient is φ = 39620880.

The previous prime is 39700919. The next prime is 39700949. The reversal of 39700939 is 93900793.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 39700939 - 2¹³ = 39692747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39700909) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39282 + ... + 40279.

It is an arithmetic number, because the mean of its divisors is an integer number (9945250).

Almost surely, 2^39700939 is an apocalyptic number.

39700939 is a deficient number, since it is larger than the sum of its proper divisors (80061).

39700939 is an equidigital number, since it uses as much as digits as its factorization.

39700939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80060.

The product of its (nonzero) digits is 45927, while the sum is 40.

The square root of 39700939 is about 6300.8681147918. The cubic root of 39700939 is about 341.1407444971.

The spelling of 39700939 in words is "thirty-nine million, seven hundred thousand, nine hundred thirty-nine".