99967501 has 2 divisors, whose sum is σ = 99967502. Its totient is φ = 99967500.

The previous prime is 99967481. The next prime is 99967519. The reversal of 99967501 is 10576999.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 94672900 + 5294601 = 9730^2 + 2301^2 .

It is a cyclic number.

It is not a de Polignac number, because 99967501 - 2⁹ = 99966989 is a prime.

It is equal to p_5759695 and since 99967501 and 5759695 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99967001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49983750 + 49983751.

It is an arithmetic number, because the mean of its divisors is an integer number (49983751).

Almost surely, 2^99967501 is an apocalyptic number.

It is an amenable number.

99967501 is a deficient number, since it is larger than the sum of its proper divisors (1).

99967501 is an equidigital number, since it uses as much as digits as its factorization.

99967501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 153090, while the sum is 46.

The square root of 99967501 is about 9998.3749179554. The cubic root of 99967501 is about 464.1085955814.

The spelling of 99967501 in words is "ninety-nine million, nine hundred sixty-seven thousand, five hundred one".