39864901 has 4 divisors (see below), whose sum is σ = 40369600. Its totient is φ = 39360204.

The previous prime is 39864899. The next prime is 39864941. The reversal of 39864901 is 10946893.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 39864901 - 2¹ = 39864899 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39864941) 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, 252231 + ... + 252388.

It is an arithmetic number, because the mean of its divisors is an integer number (10092400).

Almost surely, 2^39864901 is an apocalyptic number.

It is an amenable number.

39864901 is a deficient number, since it is larger than the sum of its proper divisors (504699).

39864901 is an equidigital number, since it uses as much as digits as its factorization.

39864901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504698.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 39864901 is about 6313.8657730427. The cubic root of 39864901 is about 341.6097283134.

The spelling of 39864901 in words is "thirty-nine million, eight hundred sixty-four thousand, nine hundred one".