115724893 has 2 divisors, whose sum is σ = 115724894. Its totient is φ = 115724892.

The previous prime is 115724881. The next prime is 115724909. The reversal of 115724893 is 398427511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 77123524 + 38601369 = 8782^2 + 6213^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-115724893 is a prime.

It is a super-2 number, since 2×115724893² = 26784501719722898, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115724803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57862446 + 57862447.

It is an arithmetic number, because the mean of its divisors is an integer number (57862447).

Almost surely, 2^115724893 is an apocalyptic number.

It is an amenable number.

115724893 is a deficient number, since it is larger than the sum of its proper divisors (1).

115724893 is an equidigital number, since it uses as much as digits as its factorization.

115724893 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60480, while the sum is 40.

The square root of 115724893 is about 10757.5505111526. The cubic root of 115724893 is about 487.3140459309.

The spelling of 115724893 in words is "one hundred fifteen million, seven hundred twenty-four thousand, eight hundred ninety-three".