99818477 has 8 divisors (see below), whose sum is σ = 111549312. Its totient is φ = 88530400.

The previous prime is 99818449. The next prime is 99818479. The reversal of 99818477 is 77481899.

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 99818477 - 2¹² = 99814381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99818479) 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, 110213 + ... + 111114.

It is an arithmetic number, because the mean of its divisors is an integer number (13943664).

Almost surely, 2^99818477 is an apocalyptic number.

It is an amenable number.

99818477 is a deficient number, since it is larger than the sum of its proper divisors (11730835).

99818477 is a wasteful number, since it uses less digits than its factorization.

99818477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221379.

The product of its digits is 1016064, while the sum is 53.

The square root of 99818477 is about 9990.9197274325. The cubic root of 99818477 is about 463.8778615429.

The spelling of 99818477 in words is "ninety-nine million, eight hundred eighteen thousand, four hundred seventy-seven".