95721815 has 16 divisors (see below), whose sum is σ = 138998592. Its totient is φ = 61776384.

The previous prime is 95721811. The next prime is 95721833. The reversal of 95721815 is 51812759.

It is a cyclic number.

It is not a de Polignac number, because 95721815 - 2² = 95721811 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 (95721811) 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, 79844 + ... + 81033.

It is an arithmetic number, because the mean of its divisors is an integer number (8687412).

Almost surely, 2^95721815 is an apocalyptic number.

95721815 is a deficient number, since it is larger than the sum of its proper divisors (43276777).

95721815 is a wasteful number, since it uses less digits than its factorization.

95721815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160906.

The product of its digits is 25200, while the sum is 38.

The square root of 95721815 is about 9783.7526031682. The cubic root of 95721815 is about 457.4429881081.

The spelling of 95721815 in words is "ninety-five million, seven hundred twenty-one thousand, eight hundred fifteen".