99938554 has 8 divisors (see below), whose sum is σ = 153959508. Its totient is φ = 48618720.

The previous prime is 99938551. The next prime is 99938569. The reversal of 99938554 is 45583999.

It can be written as a sum of positive squares in 2 ways, for example, as 84217329 + 15721225 = 9177^2 + 3965^2 .

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

It is a super-2 number, since 2×99938554² = 19975429151221832, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (99938551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 675187 + ... + 675334.

Almost surely, 2^99938554 is an apocalyptic number.

99938554 is a deficient number, since it is larger than the sum of its proper divisors (54020954).

99938554 is a wasteful number, since it uses less digits than its factorization.

99938554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1350560.

The product of its digits is 1749600, while the sum is 52.

The square root of 99938554 is about 9996.9272279036. The cubic root of 99938554 is about 464.0637948601.

The spelling of 99938554 in words is "ninety-nine million, nine hundred thirty-eight thousand, five hundred fifty-four".