88020999 has 40 divisors (see below), whose sum is σ = 144410112. Its totient is φ = 52986960.

The previous prime is 88020983. The next prime is 88021027. The reversal of 88020999 is 99902088.

It is not a de Polignac number, because 88020999 - 2⁴ = 88020983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88020949) 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 39 ways as a sum of consecutive naturals, for example, 198472 + ... + 198914.

Almost surely, 2^88020999 is an apocalyptic number.

88020999 is a deficient number, since it is larger than the sum of its proper divisors (56389113).

88020999 is a wasteful number, since it uses less digits than its factorization.

88020999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 689 (or 680 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 45.

The square root of 88020999 is about 9381.9507033452. The cubic root of 88020999 is about 444.8313951167.

The spelling of 88020999 in words is "eighty-eight million, twenty thousand, nine hundred ninety-nine".