88721311 has 24 divisors (see below), whose sum is σ = 106375680. Its totient is φ = 73749312.

The previous prime is 88721293. The next prime is 88721323. The reversal of 88721311 is 11312788.

It is a happy number.

It is not a de Polignac number, because 88721311 - 2⁷ = 88721183 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 (88721371) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 329685 + ... + 329953.

It is an arithmetic number, because the mean of its divisors is an integer number (4432320).

Almost surely, 2^88721311 is an apocalyptic number.

88721311 is a deficient number, since it is larger than the sum of its proper divisors (17654369).

88721311 is a wasteful number, since it uses less digits than its factorization.

88721311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 463 (or 456 counting only the distinct ones).

The product of its digits is 2688, while the sum is 31.

The square root of 88721311 is about 9419.1990636147. The cubic root of 88721311 is about 446.0080015590.

The spelling of 88721311 in words is "eighty-eight million, seven hundred twenty-one thousand, three hundred eleven".