87662997 has 12 divisors (see below), whose sum is σ = 126709440. Its totient is φ = 58402728.

The previous prime is 87662951. The next prime is 87663013. The reversal of 87662997 is 79926678.

87662997 is a `hidden beast` number, since 8 + 7 + 6 + 629 + 9 + 7 = 666.

It is not a de Polignac number, because 87662997 - 2⁸ = 87662741 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87612997) 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, 18454 + ... + 22712.

It is an arithmetic number, because the mean of its divisors is an integer number (10559120).

Almost surely, 2^87662997 is an apocalyptic number.

It is an amenable number.

87662997 is a deficient number, since it is larger than the sum of its proper divisors (39046443).

87662997 is a wasteful number, since it uses less digits than its factorization.

87662997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6552 (or 6549 counting only the distinct ones).

The product of its digits is 2286144, while the sum is 54.

The square root of 87662997 is about 9362.8519693521. The cubic root of 87662997 is about 444.2274978529.

The spelling of 87662997 in words is "eighty-seven million, six hundred sixty-two thousand, nine hundred ninety-seven".