99900967 has 2 divisors, whose sum is σ = 99900968. Its totient is φ = 99900966.

The previous prime is 99900949. The next prime is 99900971. The reversal of 99900967 is 76900999.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99900967 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 99900967.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99900947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49950483 + 49950484.

It is an arithmetic number, because the mean of its divisors is an integer number (49950484).

Almost surely, 2^99900967 is an apocalyptic number.

99900967 is a deficient number, since it is larger than the sum of its proper divisors (1).

99900967 is an equidigital number, since it uses as much as digits as its factorization.

99900967 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 275562, while the sum is 49.

The square root of 99900967 is about 9995.0471234507. The cubic root of 99900967 is about 464.0056092638.

The spelling of 99900967 in words is "ninety-nine million, nine hundred thousand, nine hundred sixty-seven".