99990759 has 32 divisors (see below), whose sum is σ = 150087168. Its totient is φ = 58688000.

The previous prime is 99990757. The next prime is 99990799. The reversal of 99990759 is 95709999.

It is a cyclic number.

It is not a de Polignac number, because 99990759 - 2¹ = 99990757 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 99990699 and 99990708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99990757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 355699 + ... + 355979.

It is an arithmetic number, because the mean of its divisors is an integer number (4690224).

Almost surely, 2^99990759 is an apocalyptic number.

99990759 is a deficient number, since it is larger than the sum of its proper divisors (50096409).

99990759 is a wasteful number, since it uses less digits than its factorization.

99990759 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 599.

The product of its (nonzero) digits is 2066715, while the sum is 57.

The square root of 99990759 is about 9999.5379393250. The cubic root of 99990759 is about 464.1445852800.

The spelling of 99990759 in words is "ninety-nine million, nine hundred ninety thousand, seven hundred fifty-nine".