99576401 has 4 divisors (see below), whose sum is σ = 103010100. Its totient is φ = 96142704.

The previous prime is 99576377. The next prime is 99576439. The reversal of 99576401 is 10467599.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 31348801 + 68227600 = 5599^2 + 8260^2 .

It is a cyclic number.

It is not a de Polignac number, because 99576401 - 2²² = 95382097 is a prime.

It is a super-2 number, since 2×99576401² = 19830919272225602, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (99576101) 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, 1716806 + ... + 1716863.

It is an arithmetic number, because the mean of its divisors is an integer number (25752525).

Almost surely, 2^99576401 is an apocalyptic number.

It is an amenable number.

99576401 is a deficient number, since it is larger than the sum of its proper divisors (3433699).

99576401 is a wasteful number, since it uses less digits than its factorization.

99576401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3433698.

The product of its (nonzero) digits is 68040, while the sum is 41.

The square root of 99576401 is about 9978.7975728542. The cubic root of 99576401 is about 463.5025649716.

The spelling of 99576401 in words is "ninety-nine million, five hundred seventy-six thousand, four hundred one".