88521705 has 12 divisors (see below), whose sum is σ = 153437700. Its totient is φ = 47211552.

The previous prime is 88521689. The next prime is 88521731. The reversal of 88521705 is 50712588.

It can be written as a sum of positive squares in 2 ways, for example, as 23299929 + 65221776 = 4827^2 + 8076^2 .

It is not a de Polignac number, because 88521705 - 2⁴ = 88521689 is a prime.

It is a super-2 number, since 2×88521705² = 15672184512214050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 88521705.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 983530 + ... + 983619.

It is an arithmetic number, because the mean of its divisors is an integer number (12786475).

Almost surely, 2^88521705 is an apocalyptic number.

It is an amenable number.

88521705 is a deficient number, since it is larger than the sum of its proper divisors (64915995).

88521705 is a wasteful number, since it uses less digits than its factorization.

88521705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1967160 (or 1967157 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 36.

The square root of 88521705 is about 9408.5973981248. The cubic root of 88521705 is about 445.6732728095.

The spelling of 88521705 in words is "eighty-eight million, five hundred twenty-one thousand, seven hundred five".