99000509 has 4 divisors (see below), whose sum is σ = 100253760. Its totient is φ = 97747260.

The previous prime is 99000479. The next prime is 99000511. The reversal of 99000509 is 90500099.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 99000509 - 2¹² = 98996413 is a prime.

It is a super-2 number, since 2×99000509² = 19602201564518162, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99000529) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 626507 + ... + 626664.

It is an arithmetic number, because the mean of its divisors is an integer number (25063440).

Almost surely, 2^99000509 is an apocalyptic number.

It is an amenable number.

99000509 is a deficient number, since it is larger than the sum of its proper divisors (1253251).

99000509 is a wasteful number, since it uses less digits than its factorization.

99000509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1253250.

The product of its (nonzero) digits is 3645, while the sum is 32.

The square root of 99000509 is about 9949.8999492457. The cubic root of 99000509 is about 462.6072937341.

The spelling of 99000509 in words is "ninety-nine million, five hundred nine", and thus it is an aban number.