99967001 has 2 divisors, whose sum is σ = 99967002. Its totient is φ = 99967000.

The previous prime is 99966991. The next prime is 99967009. The reversal of 99967001 is 10076999.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 66846976 + 33120025 = 8176^2 + 5755^2 .

It is a cyclic number.

It is not a de Polignac number, because 99967001 - 2¹⁰ = 99965977 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 99967001.

It is not a weakly prime, because it can be changed into another prime (99967009) 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 as a sum of consecutive naturals, namely, 49983500 + 49983501.

It is an arithmetic number, because the mean of its divisors is an integer number (49983501).

Almost surely, 2^99967001 is an apocalyptic number.

It is an amenable number.

99967001 is a deficient number, since it is larger than the sum of its proper divisors (1).

99967001 is an equidigital number, since it uses as much as digits as its factorization.

99967001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30618, while the sum is 41.

The square root of 99967001 is about 9998.3499138608. The cubic root of 99967001 is about 464.1078218143.

The spelling of 99967001 in words is "ninety-nine million, nine hundred sixty-seven thousand, one".