115889397 has 16 divisors (see below), whose sum is σ = 166719168. Its totient is φ = 71182080.

The previous prime is 115889381. The next prime is 115889399. The reversal of 115889397 is 793988511.

It is not a de Polignac number, because 115889397 - 2⁴ = 115889381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115889399) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20622 + ... + 25632.

It is an arithmetic number, because the mean of its divisors is an integer number (10419948).

Almost surely, 2^115889397 is an apocalyptic number.

It is an amenable number.

115889397 is a deficient number, since it is larger than the sum of its proper divisors (50829771).

115889397 is a wasteful number, since it uses less digits than its factorization.

115889397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5620.

The product of its digits is 544320, while the sum is 51.

The square root of 115889397 is about 10765.1937743823. The cubic root of 115889397 is about 487.5448437381.

The spelling of 115889397 in words is "one hundred fifteen million, eight hundred eighty-nine thousand, three hundred ninety-seven".