99410621 has 4 divisors (see below), whose sum is σ = 99543744. Its totient is φ = 99277500.

The previous prime is 99410617. The next prime is 99410651. The reversal of 99410621 is 12601499.

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 99410621 - 2² = 99410617 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99410651) 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, 65435 + ... + 66936.

It is an arithmetic number, because the mean of its divisors is an integer number (24885936).

Almost surely, 2^99410621 is an apocalyptic number.

It is an amenable number.

99410621 is a deficient number, since it is larger than the sum of its proper divisors (133123).

99410621 is a wasteful number, since it uses less digits than its factorization.

99410621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133122.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 99410621 is about 9970.4875006190. The cubic root of 99410621 is about 463.2452009909.

The spelling of 99410621 in words is "ninety-nine million, four hundred ten thousand, six hundred twenty-one".