88421504 has 16 divisors (see below), whose sum is σ = 176152470. Its totient is φ = 44210688.

The previous prime is 88421503. The next prime is 88421519. The reversal of 88421504 is 40512488.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 88360000 + 61504 = 9400^2 + 248^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (88421503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 345269 + ... + 345524.

Almost surely, 2^88421504 is an apocalyptic number.

It is an amenable number.

88421504 is a deficient number, since it is larger than the sum of its proper divisors (87730966).

88421504 is an equidigital number, since it uses as much as digits as its factorization.

88421504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 690807 (or 690795 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 32.

The square root of 88421504 is about 9403.2709202702. The cubic root of 88421504 is about 445.5050512875.

The spelling of 88421504 in words is "eighty-eight million, four hundred twenty-one thousand, five hundred four".