99979357 has 2 divisors, whose sum is σ = 99979358. Its totient is φ = 99979356.

The previous prime is 99979337. The next prime is 99979381. The reversal of 99979357 is 75397999.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 75585636 + 24393721 = 8694^2 + 4939^2 .

It is a cyclic number.

It is not a de Polignac number, because 99979357 - 2¹¹ = 99977309 is a prime.

It is a super-2 number, since 2×99979357² = 19991743652266898, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99979337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49989678 + 49989679.

It is an arithmetic number, because the mean of its divisors is an integer number (49989679).

Almost surely, 2^99979357 is an apocalyptic number.

It is an amenable number.

99979357 is a deficient number, since it is larger than the sum of its proper divisors (1).

99979357 is an equidigital number, since it uses as much as digits as its factorization.

99979357 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4822335, while the sum is 58.

The square root of 99979357 is about 9998.9677967278. The cubic root of 99979357 is about 464.1269423906.

The spelling of 99979357 in words is "ninety-nine million, nine hundred seventy-nine thousand, three hundred fifty-seven".