88408521 has 6 divisors (see below), whose sum is σ = 127701210. Its totient is φ = 58939008.

The previous prime is 88408499. The next prime is 88408543. The reversal of 88408521 is 12580488.

It is an interprime number because it is at equal distance from previous prime (88408499) and next prime (88408543).

It can be written as a sum of positive squares in only one way, i.e., 75012921 + 13395600 = 8661^2 + 3660^2 .

It is not a de Polignac number, because 88408521 - 2⁷ = 88408393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (88408321) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4911576 + ... + 4911593.

It is an arithmetic number, because the mean of its divisors is an integer number (21283535).

Almost surely, 2^88408521 is an apocalyptic number.

It is an amenable number.

88408521 is a deficient number, since it is larger than the sum of its proper divisors (39292689).

88408521 is a wasteful number, since it uses less digits than its factorization.

88408521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9823175 (or 9823172 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 36.

The square root of 88408521 is about 9402.5805500405. The cubic root of 88408521 is about 445.4832455995.

The spelling of 88408521 in words is "eighty-eight million, four hundred eight thousand, five hundred twenty-one".