389087357 has 4 divisors (see below), whose sum is σ = 391474560. Its totient is φ = 386700156.

The previous prime is 389087353. The next prime is 389087383. The reversal of 389087357 is 753780983.

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 389087357 - 2² = 389087353 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 (389087353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1193357 + ... + 1193682.

It is an arithmetic number, because the mean of its divisors is an integer number (97868640).

Almost surely, 2^389087357 is an apocalyptic number.

It is an amenable number.

389087357 is a deficient number, since it is larger than the sum of its proper divisors (2387203).

389087357 is a wasteful number, since it uses less digits than its factorization.

389087357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2387202.

The product of its (nonzero) digits is 1270080, while the sum is 50.

The square root of 389087357 is about 19725.2973868583. The cubic root of 389087357 is about 730.0440062294.

The spelling of 389087357 in words is "three hundred eighty-nine million, eighty-seven thousand, three hundred fifty-seven".