389864351 has 4 divisors (see below), whose sum is σ = 393314592. Its totient is φ = 386414112.

The previous prime is 389864347. The next prime is 389864353. The reversal of 389864351 is 153468983.

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 389864351 - 2² = 389864347 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 389864296 and 389864305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389864353) 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, 1724951 + ... + 1725176.

It is an arithmetic number, because the mean of its divisors is an integer number (98328648).

Almost surely, 2^389864351 is an apocalyptic number.

389864351 is a deficient number, since it is larger than the sum of its proper divisors (3450241).

389864351 is a wasteful number, since it uses less digits than its factorization.

389864351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3450240.

The product of its digits is 622080, while the sum is 47.

The square root of 389864351 is about 19744.9829323806. The cubic root of 389864351 is about 730.5296406545.

The spelling of 389864351 in words is "three hundred eighty-nine million, eight hundred sixty-four thousand, three hundred fifty-one".