99377997 has 8 divisors (see below), whose sum is σ = 132973344. Its totient is φ = 66017328.

The previous prime is 99377989. The next prime is 99378011. The reversal of 99377997 is 79977399.

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

It is not a de Polignac number, because 99377997 - 2³ = 99377989 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 99377997.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99377977) 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, 57678 + ... + 59375.

It is an arithmetic number, because the mean of its divisors is an integer number (16621668).

Almost surely, 2^99377997 is an apocalyptic number.

It is an amenable number.

99377997 is a deficient number, since it is larger than the sum of its proper divisors (33595347).

99377997 is a wasteful number, since it uses less digits than its factorization.

99377997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117339.

The product of its digits is 6751269, while the sum is 60.

The square root of 99377997 is about 9968.8513380429. The cubic root of 99377997 is about 463.1945204070.

The spelling of 99377997 in words is "ninety-nine million, three hundred seventy-seven thousand, nine hundred ninety-seven".