99458591 has 2 divisors, whose sum is σ = 99458592. Its totient is φ = 99458590.

The previous prime is 99458573. The next prime is 99458599. The reversal of 99458591 is 19585499.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 99458591 - 2¹⁴ = 99442207 is a prime.

It is a super-2 number, since 2×99458591² = 19784022647410562, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99458599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49729295 + 49729296.

It is an arithmetic number, because the mean of its divisors is an integer number (49729296).

Almost surely, 2^99458591 is an apocalyptic number.

99458591 is a deficient number, since it is larger than the sum of its proper divisors (1).

99458591 is an equidigital number, since it uses as much as digits as its factorization.

99458591 is an evil number, because the sum of its binary digits is even.

The product of its digits is 583200, while the sum is 50.

The square root of 99458591 is about 9972.8928100125. The cubic root of 99458591 is about 463.3197010751.

The spelling of 99458591 in words is "ninety-nine million, four hundred fifty-eight thousand, five hundred ninety-one".