87641802 has 24 divisors (see below), whose sum is σ = 190422336. Its totient is φ = 29132136.

The previous prime is 87641797. The next prime is 87641821. The reversal of 87641802 is 20814678.

87641802 is a `hidden beast` number, since 8 + 7 + 641 + 8 + 0 + 2 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28 + ... + 13239.

It is an arithmetic number, because the mean of its divisors is an integer number (7934264).

Almost surely, 2^87641802 is an apocalyptic number.

87641802 is an abundant number, since it is smaller than the sum of its proper divisors (102780534).

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

87641802 is a wasteful number, since it uses less digits than its factorization.

87641802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13642 (or 13639 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 87641802 is about 9361.7200342672. The cubic root of 87641802 is about 444.1916934617.

The spelling of 87641802 in words is "eighty-seven million, six hundred forty-one thousand, eight hundred two".