99722747 has 2 divisors, whose sum is σ = 99722748. Its totient is φ = 99722746.

The previous prime is 99722743. The next prime is 99722761. The reversal of 99722747 is 74722799.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 99722747 - 2² = 99722743 is a prime.

It is not a weakly prime, because it can be changed into another prime (99722741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49861373 + 49861374.

It is an arithmetic number, because the mean of its divisors is an integer number (49861374).

Almost surely, 2^99722747 is an apocalyptic number.

99722747 is a deficient number, since it is larger than the sum of its proper divisors (1).

99722747 is an equidigital number, since it uses as much as digits as its factorization.

99722747 is an evil number, because the sum of its binary digits is even.

The product of its digits is 444528, while the sum is 47.

The square root of 99722747 is about 9986.1277280035. The cubic root of 99722747 is about 463.7295215006.

The spelling of 99722747 in words is "ninety-nine million, seven hundred twenty-two thousand, seven hundred forty-seven".