99494951 has 2 divisors, whose sum is σ = 99494952. Its totient is φ = 99494950.

The previous prime is 99494947. The next prime is 99494977. The reversal of 99494951 is 15949499.

It is a weak prime.

It is an emirp because it is prime and its reverse (15949499) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99494951 - 2² = 99494947 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 99494951.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99494651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49747475 + 49747476.

It is an arithmetic number, because the mean of its divisors is an integer number (49747476).

Almost surely, 2^99494951 is an apocalyptic number.

99494951 is a deficient number, since it is larger than the sum of its proper divisors (1).

99494951 is an equidigital number, since it uses as much as digits as its factorization.

99494951 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 524880, while the sum is 50.

The square root of 99494951 is about 9974.7155849177. The cubic root of 99494951 is about 463.3761542238.

The spelling of 99494951 in words is "ninety-nine million, four hundred ninety-four thousand, nine hundred fifty-one".