87424330 has 24 divisors (see below), whose sum is σ = 183056868. Its totient is φ = 29973888.

The previous prime is 87424327. The next prime is 87424331. The reversal of 87424330 is 3342478.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 75707401 + 11716929 = 8701^2 + 3423^2 .

It is a junction number, because it is equal to n+sod(n) for n = 87424292 and 87424301.

It is not an unprimeable number, because it can be changed into a prime (87424331) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 88719 + ... + 89698.

Almost surely, 2^87424330 is an apocalyptic number.

87424330 is an abundant number, since it is smaller than the sum of its proper divisors (95632538).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87424330 is a wasteful number, since it uses less digits than its factorization.

87424330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178438 (or 178431 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 31.

The square root of 87424330 is about 9350.0978604504. The cubic root of 87424330 is about 443.8239873987.

The spelling of 87424330 in words is "eighty-seven million, four hundred twenty-four thousand, three hundred thirty".