87680994 has 32 divisors (see below), whose sum is σ = 179262720. Its totient is φ = 28584192.

The previous prime is 87680993. The next prime is 87681059. The reversal of 87680994 is 49908678.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (87680993) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52744 + ... + 54380.

It is an arithmetic number, because the mean of its divisors is an integer number (5601960).

Almost surely, 2^87680994 is an apocalyptic number.

87680994 is an abundant number, since it is smaller than the sum of its proper divisors (91581726).

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

87680994 is a wasteful number, since it uses less digits than its factorization.

87680994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1834.

The product of its (nonzero) digits is 870912, while the sum is 51.

The square root of 87680994 is about 9363.8130053948. The cubic root of 87680994 is about 444.2578953810.

The spelling of 87680994 in words is "eighty-seven million, six hundred eighty thousand, nine hundred ninety-four".