87031430 has 16 divisors (see below), whose sum is σ = 157172400. Its totient is φ = 34697952.

The previous prime is 87031429. The next prime is 87031447. The reversal of 87031430 is 3413078.

It is a self number, because there is not a number n which added to its sum of digits gives 87031430.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11105 + ... + 17244.

It is an arithmetic number, because the mean of its divisors is an integer number (9823275).

Almost surely, 2^87031430 is an apocalyptic number.

87031430 is a deficient number, since it is larger than the sum of its proper divisors (70140970).

87031430 is a wasteful number, since it uses less digits than its factorization.

87031430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28663.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 87031430 is about 9329.0637257980. The cubic root of 87031430 is about 443.1581150656.

The spelling of 87031430 in words is "eighty-seven million, thirty-one thousand, four hundred thirty".