99747207 has 80 divisors (see below), whose sum is σ = 183997440. Its totient is φ = 52581312.

The previous prime is 99747191. The next prime is 99747223. The reversal of 99747207 is 70274799.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (99747191) and next prime (99747223).

It is not a de Polignac number, because 99747207 - 2⁴ = 99747191 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99747107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 506233 + ... + 506429.

It is an arithmetic number, because the mean of its divisors is an integer number (2299968).

Almost surely, 2^99747207 is an apocalyptic number.

99747207 is a deficient number, since it is larger than the sum of its proper divisors (84250233).

99747207 is a wasteful number, since it uses less digits than its factorization.

99747207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282 (or 273 counting only the distinct ones).

The product of its (nonzero) digits is 222264, while the sum is 45.

The square root of 99747207 is about 9987.3523518498. The cubic root of 99747207 is about 463.7674329340.

The spelling of 99747207 in words is "ninety-nine million, seven hundred forty-seven thousand, two hundred seven".