88001999 has 2 divisors, whose sum is σ = 88002000. Its totient is φ = 88001998.

The previous prime is 88001993. The next prime is 88002023. The reversal of 88001999 is 99910088.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 88001999 - 2¹⁶ = 87936463 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (88001993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44000999 + 44001000.

It is an arithmetic number, because the mean of its divisors is an integer number (44001000).

Almost surely, 2^88001999 is an apocalyptic number.

88001999 is a deficient number, since it is larger than the sum of its proper divisors (1).

88001999 is an equidigital number, since it uses as much as digits as its factorization.

88001999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656, while the sum is 44.

The square root of 88001999 is about 9380.9380660998. The cubic root of 88001999 is about 444.7993860703.

The spelling of 88001999 in words is "eighty-eight million, one thousand, nine hundred ninety-nine".