389964901 has 4 divisors (see below), whose sum is σ = 393751072. Its totient is φ = 386178732.

The previous prime is 389964847. The next prime is 389964907. The reversal of 389964901 is 109469983.

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 389964901 - 2¹⁹ = 389440613 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 (389964907) 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, 1892931 + ... + 1893136.

It is an arithmetic number, because the mean of its divisors is an integer number (98437768).

Almost surely, 2^389964901 is an apocalyptic number.

It is an amenable number.

389964901 is a deficient number, since it is larger than the sum of its proper divisors (3786171).

389964901 is a wasteful number, since it uses less digits than its factorization.

389964901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3786170.

The product of its (nonzero) digits is 419904, while the sum is 49.

The square root of 389964901 is about 19747.5289846603. The cubic root of 389964901 is about 730.5924389425.

The spelling of 389964901 in words is "three hundred eighty-nine million, nine hundred sixty-four thousand, nine hundred one".