99507919 has 16 divisors (see below), whose sum is σ = 120676608. Its totient is φ = 80099712.

The previous prime is 99507901. The next prime is 99507937. The reversal of 99507919 is 91970599.

It is an interprime number because it is at equal distance from previous prime (99507901) and next prime (99507937).

It is not a de Polignac number, because 99507919 - 2⁵ = 99507887 is a prime.

It is a super-2 number, since 2×99507919² = 19803651887421122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99507949) 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 15 ways as a sum of consecutive naturals, for example, 104604 + ... + 105550.

It is an arithmetic number, because the mean of its divisors is an integer number (7542288).

Almost surely, 2^99507919 is an apocalyptic number.

99507919 is a deficient number, since it is larger than the sum of its proper divisors (21168689).

99507919 is a wasteful number, since it uses less digits than its factorization.

99507919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1854.

The product of its (nonzero) digits is 229635, while the sum is 49.

The square root of 99507919 is about 9975.3656073349. The cubic root of 99507919 is about 463.3962852316.

The spelling of 99507919 in words is "ninety-nine million, five hundred seven thousand, nine hundred nineteen".