87285904470 has 24 divisors (see below), whose sum is σ = 226943351856. Its totient is φ = 23276241168.

The previous prime is 87285904469. The next prime is 87285904471. The reversal of 87285904470 is 7440958278.

It is a happy number.

87285904470 is a `hidden beast` number, since 8 + 7 + 2 + 8 + 590 + 4 + 47 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (87285904469) and next prime (87285904471).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87285904471) 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, 484921602 + ... + 484921781.

It is an arithmetic number, because the mean of its divisors is an integer number (9455972994).

Almost surely, 2^87285904470 is an apocalyptic number.

87285904470 is an abundant number, since it is smaller than the sum of its proper divisors (139657447386).

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

87285904470 is a wasteful number, since it uses less digits than its factorization.

87285904470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 969843396 (or 969843393 counting only the distinct ones).

The product of its (nonzero) digits is 4515840, while the sum is 54.

The spelling of 87285904470 in words is "eighty-seven billion, two hundred eighty-five million, nine hundred four thousand, four hundred seventy".