87047030 has 24 divisors (see below), whose sum is σ = 182266848. Its totient is φ = 29844528.

The previous prime is 87047017. The next prime is 87047033. The reversal of 87047030 is 3074078.

It is a junction number, because it is equal to n+sod(n) for n = 87046984 and 87047002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87047033) 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, 88334 + ... + 89313.

It is an arithmetic number, because the mean of its divisors is an integer number (7594452).

Almost surely, 2^87047030 is an apocalyptic number.

87047030 is an abundant number, since it is smaller than the sum of its proper divisors (95219818).

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

87047030 is a wasteful number, since it uses less digits than its factorization.

87047030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177668 (or 177661 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 29.

The square root of 87047030 is about 9329.8997850995. The cubic root of 87047030 is about 443.1845915297.

The spelling of 87047030 in words is "eighty-seven million, forty-seven thousand, thirty".