88921511 has 16 divisors (see below), whose sum is σ = 106194240. Its totient is φ = 72844800.

The previous prime is 88921507. The next prime is 88921513. The reversal of 88921511 is 11512988.

It is not a de Polignac number, because 88921511 - 2² = 88921507 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 (88921513) 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, 18335 + ... + 22671.

It is an arithmetic number, because the mean of its divisors is an integer number (6637140).

Almost surely, 2^88921511 is an apocalyptic number.

88921511 is a deficient number, since it is larger than the sum of its proper divisors (17272729).

88921511 is a wasteful number, since it uses less digits than its factorization.

88921511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4474.

The product of its digits is 5760, while the sum is 35.

The square root of 88921511 is about 9429.8203058171. The cubic root of 88921511 is about 446.3432225008.

The spelling of 88921511 in words is "eighty-eight million, nine hundred twenty-one thousand, five hundred eleven".