99910513 has 8 divisors (see below), whose sum is σ = 106836840. Its totient is φ = 93100800.

The previous prime is 99910511. The next prime is 99910553. The reversal of 99910513 is 31501999.

It can be written as a sum of positive squares in 4 ways, for example, as 31550689 + 68359824 = 5617^2 + 8268^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 99910513 - 2¹ = 99910511 is a prime.

It is a super-2 number, since 2×99910513² = 19964221215846338, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (99910511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27378 + ... + 30811.

It is an arithmetic number, because the mean of its divisors is an integer number (13354605).

Almost surely, 2^99910513 is an apocalyptic number.

It is an amenable number.

99910513 is a deficient number, since it is larger than the sum of its proper divisors (6926327).

99910513 is a wasteful number, since it uses less digits than its factorization.

99910513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58307.

The product of its (nonzero) digits is 10935, while the sum is 37.

The square root of 99910513 is about 9995.5246485615. The cubic root of 99910513 is about 464.0203880880.

It can be divided in two parts, 9991051 and 3, that multiplied together give a triangular number (29973153 = T₇₇₄₂).

The spelling of 99910513 in words is "ninety-nine million, nine hundred ten thousand, five hundred thirteen".