99977371 has 4 divisors (see below), whose sum is σ = 107667952. Its totient is φ = 92286792.

The previous prime is 99977363. The next prime is 99977377. The reversal of 99977371 is 17377999.

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

It is not a de Polignac number, because 99977371 - 2³ = 99977363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99977377) 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, 3845271 + ... + 3845296.

It is an arithmetic number, because the mean of its divisors is an integer number (26916988).

Almost surely, 2^99977371 is an apocalyptic number.

99977371 is a deficient number, since it is larger than the sum of its proper divisors (7690581).

99977371 is a wasteful number, since it uses less digits than its factorization.

99977371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7690580.

The product of its digits is 750141, while the sum is 52.

The square root of 99977371 is about 9998.8684859838. The cubic root of 99977371 is about 464.1238692155.

The spelling of 99977371 in words is "ninety-nine million, nine hundred seventy-seven thousand, three hundred seventy-one".