99490597 has 2 divisors, whose sum is σ = 99490598. Its totient is φ = 99490596.

The previous prime is 99490591. The next prime is 99490607. The reversal of 99490597 is 79509499.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 90041121 + 9449476 = 9489^2 + 3074^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99490597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99490591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49745298 + 49745299.

It is an arithmetic number, because the mean of its divisors is an integer number (49745299).

Almost surely, 2^99490597 is an apocalyptic number.

It is an amenable number.

99490597 is a deficient number, since it is larger than the sum of its proper divisors (1).

99490597 is an equidigital number, since it uses as much as digits as its factorization.

99490597 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 918540, while the sum is 52.

The square root of 99490597 is about 9974.4973306929. The cubic root of 99490597 is about 463.3693948550.

The spelling of 99490597 in words is "ninety-nine million, four hundred ninety thousand, five hundred ninety-seven".