99234621 has 12 divisors (see below), whose sum is σ = 144759420. Its totient is φ = 65500800.

The previous prime is 99234599. The next prime is 99234643. The reversal of 99234621 is 12643299.

99234621 is a `hidden beast` number, since 9 + 9 + 23 + 4 + 621 = 666.

It is an interprime number because it is at equal distance from previous prime (99234599) and next prime (99234643).

It can be written as a sum of positive squares in 2 ways, for example, as 53144100 + 46090521 = 7290^2 + 6789^2 .

It is not a de Polignac number, because 99234621 - 2¹⁷ = 99103549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99234691) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53676 + ... + 55493.

It is an arithmetic number, because the mean of its divisors is an integer number (12063285).

Almost surely, 2^99234621 is an apocalyptic number.

It is an amenable number.

99234621 is a deficient number, since it is larger than the sum of its proper divisors (45524799).

99234621 is a wasteful number, since it uses less digits than its factorization.

99234621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109276 (or 109273 counting only the distinct ones).

The product of its digits is 23328, while the sum is 36.

The square root of 99234621 is about 9961.6575427988. The cubic root of 99234621 is about 462.9716577245.

The spelling of 99234621 in words is "ninety-nine million, two hundred thirty-four thousand, six hundred twenty-one".