87693966 has 24 divisors (see below), whose sum is σ = 193120824. Its totient is φ = 28751760.

The previous prime is 87693961. The next prime is 87693967. The reversal of 87693966 is 66939678.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87693961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38836 + ... + 41031.

It is an arithmetic number, because the mean of its divisors is an integer number (8046701).

Almost surely, 2^87693966 is an apocalyptic number.

87693966 is an abundant number, since it is smaller than the sum of its proper divisors (105426858).

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

87693966 is a wasteful number, since it uses less digits than its factorization.

87693966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79936 (or 79933 counting only the distinct ones).

The product of its digits is 2939328, while the sum is 54.

The square root of 87693966 is about 9364.5056463222. The cubic root of 87693966 is about 444.2798029385.

The spelling of 87693966 in words is "eighty-seven million, six hundred ninety-three thousand, nine hundred sixty-six".