87936899 has 2 divisors, whose sum is σ = 87936900. Its totient is φ = 87936898.

The previous prime is 87936887. The next prime is 87936913. The reversal of 87936899 is 99863978.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87936899 is a prime.

It is not a weakly prime, because it can be changed into another prime (87936809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43968449 + 43968450.

It is an arithmetic number, because the mean of its divisors is an integer number (43968450).

Almost surely, 2^87936899 is an apocalyptic number.

87936899 is a deficient number, since it is larger than the sum of its proper divisors (1).

87936899 is an equidigital number, since it uses as much as digits as its factorization.

87936899 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5878656, while the sum is 59.

The square root of 87936899 is about 9377.4676219116. The cubic root of 87936899 is about 444.6896780200.

The spelling of 87936899 in words is "eighty-seven million, nine hundred thirty-six thousand, eight hundred ninety-nine".