389952311 has 4 divisors (see below), whose sum is σ = 445659792. Its totient is φ = 334244832.

The previous prime is 389952301. The next prime is 389952313. The reversal of 389952311 is 113259983.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 113259983 = 1091 ⋅103813.

It is a cyclic number.

It is not a de Polignac number, because 389952311 - 2⁶ = 389952247 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 (389952313) 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, 27853730 + ... + 27853743.

It is an arithmetic number, because the mean of its divisors is an integer number (111414948).

Almost surely, 2^389952311 is an apocalyptic number.

389952311 is a deficient number, since it is larger than the sum of its proper divisors (55707481).

389952311 is an equidigital number, since it uses as much as digits as its factorization.

389952311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55707480.

The product of its digits is 58320, while the sum is 41.

The square root of 389952311 is about 19747.2102080269. The cubic root of 389952311 is about 730.5845764761.

The spelling of 389952311 in words is "three hundred eighty-nine million, nine hundred fifty-two thousand, three hundred eleven".