87982470 has 32 divisors (see below), whose sum is σ = 234620640. Its totient is φ = 23461920.

The previous prime is 87982459. The next prime is 87982481. The reversal of 87982470 is 7428978.

It is an interprime number because it is at equal distance from previous prime (87982459) and next prime (87982481).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 162661 + ... + 163200.

It is an arithmetic number, because the mean of its divisors is an integer number (7331895).

Almost surely, 2^87982470 is an apocalyptic number.

87982470 is an abundant number, since it is smaller than the sum of its proper divisors (146638170).

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

87982470 is a wasteful number, since it uses less digits than its factorization.

87982470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325877 (or 325871 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 45.

The square root of 87982470 is about 9379.8971209710. The cubic root of 87982470 is about 444.7664810229.

The spelling of 87982470 in words is "eighty-seven million, nine hundred eighty-two thousand, four hundred seventy".