115428693 has 4 divisors (see below), whose sum is σ = 153904928. Its totient is φ = 76952460.

The previous prime is 115428689. The next prime is 115428737. The reversal of 115428693 is 396824511.

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 not a de Polignac number, because 115428693 - 2² = 115428689 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 (115428673) 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, 19238113 + ... + 19238118.

It is an arithmetic number, because the mean of its divisors is an integer number (38476232).

Almost surely, 2^115428693 is an apocalyptic number.

It is an amenable number.

115428693 is a deficient number, since it is larger than the sum of its proper divisors (38476235).

115428693 is an equidigital number, since it uses as much as digits as its factorization.

115428693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38476234.

The product of its digits is 51840, while the sum is 39.

The square root of 115428693 is about 10743.7746160276. The cubic root of 115428693 is about 486.8979276089.

The spelling of 115428693 in words is "one hundred fifteen million, four hundred twenty-eight thousand, six hundred ninety-three".