115639723 has 8 divisors (see below), whose sum is σ = 116817920. Its totient is φ = 114465960.

The previous prime is 115639709. The next prime is 115639751. The reversal of 115639723 is 327936511.

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

It is a cyclic number.

It is not a de Polignac number, because 115639723 - 2⁵ = 115639691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115639123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77878 + ... + 79348.

It is an arithmetic number, because the mean of its divisors is an integer number (14602240).

Almost surely, 2^115639723 is an apocalyptic number.

115639723 is a deficient number, since it is larger than the sum of its proper divisors (1178197).

115639723 is a wasteful number, since it uses less digits than its factorization.

115639723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2217.

The product of its digits is 34020, while the sum is 37.

The square root of 115639723 is about 10753.5911676054. The cubic root of 115639723 is about 487.1944671540.

The spelling of 115639723 in words is "one hundred fifteen million, six hundred thirty-nine thousand, seven hundred twenty-three".