87993006 has 16 divisors (see below), whose sum is σ = 176168784. Its totient is φ = 29300544.

The previous prime is 87993001. The next prime is 87993019. The reversal of 87993006 is 60039978.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87993001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 901 + ... + 13296.

It is an arithmetic number, because the mean of its divisors is an integer number (11010549).

Almost surely, 2^87993006 is an apocalyptic number.

87993006 is an abundant number, since it is smaller than the sum of its proper divisors (88175778).

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

87993006 is a wasteful number, since it uses less digits than its factorization.

87993006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15235.

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 87993006 is about 9380.4587307871. The cubic root of 87993006 is about 444.7842340769.

The spelling of 87993006 in words is "eighty-seven million, nine hundred ninety-three thousand, six".