99994567 has 2 divisors, whose sum is σ = 99994568. Its totient is φ = 99994566.

The previous prime is 99994553. The next prime is 99994571. The reversal of 99994567 is 76549999.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 99994567 - 2²³ = 91605959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99994267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49997283 + 49997284.

It is an arithmetic number, because the mean of its divisors is an integer number (49997284).

Almost surely, 2^99994567 is an apocalyptic number.

99994567 is a deficient number, since it is larger than the sum of its proper divisors (1).

99994567 is an equidigital number, since it uses as much as digits as its factorization.

99994567 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5511240, while the sum is 58.

The square root of 99994567 is about 9999.7283463102. The cubic root of 99994567 is about 464.1504772917.

The spelling of 99994567 in words is "ninety-nine million, nine hundred ninety-four thousand, five hundred sixty-seven".