115979690 has 8 divisors (see below), whose sum is σ = 208763460. Its totient is φ = 46391872.

The previous prime is 115979687. The next prime is 115979701. The reversal of 115979690 is 96979511.

It can be written as a sum of positive squares in 2 ways, for example, as 114297481 + 1682209 = 10691^2 + 1297^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×115979690² = 26902576984992200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5798975 + ... + 5798994.

Almost surely, 2^115979690 is an apocalyptic number.

115979690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

115979690 is a deficient number, since it is larger than the sum of its proper divisors (92783770).

115979690 is a wasteful number, since it uses less digits than its factorization.

115979690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11597976.

The product of its (nonzero) digits is 153090, while the sum is 47.

The square root of 115979690 is about 10769.3867049150. The cubic root of 115979690 is about 487.6714312710.

The spelling of 115979690 in words is "one hundred fifteen million, nine hundred seventy-nine thousand, six hundred ninety".