99674957 has 2 divisors, whose sum is σ = 99674958. Its totient is φ = 99674956.

The previous prime is 99674933. The next prime is 99674959. The reversal of 99674957 is 75947699.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 94264681 + 5410276 = 9709^2 + 2326^2 .

It is an emirp because it is prime and its reverse (75947699) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99674957 - 2¹⁰ = 99673933 is a prime.

Together with 99674959, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99674959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49837478 + 49837479.

It is an arithmetic number, because the mean of its divisors is an integer number (49837479).

Almost surely, 2^99674957 is an apocalyptic number.

It is an amenable number.

99674957 is a deficient number, since it is larger than the sum of its proper divisors (1).

99674957 is an equidigital number, since it uses as much as digits as its factorization.

99674957 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4286520, while the sum is 56.

The square root of 99674957 is about 9983.7346218737. The cubic root of 99674957 is about 463.6554321693.

The spelling of 99674957 in words is "ninety-nine million, six hundred seventy-four thousand, nine hundred fifty-seven".