98490591 has 6 divisors (see below), whose sum is σ = 142264200. Its totient is φ = 65660388.

The previous prime is 98490563. The next prime is 98490617. The reversal of 98490591 is 19509489.

It is not a de Polignac number, because 98490591 - 2⁶ = 98490527 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98490541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5471691 + ... + 5471708.

It is an arithmetic number, because the mean of its divisors is an integer number (23710700).

Almost surely, 2^98490591 is an apocalyptic number.

98490591 is a deficient number, since it is larger than the sum of its proper divisors (43773609).

98490591 is a wasteful number, since it uses less digits than its factorization.

98490591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10943405 (or 10943402 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 45.

The square root of 98490591 is about 9924.2425907472. The cubic root of 98490591 is about 461.8116818368.

The spelling of 98490591 in words is "ninety-eight million, four hundred ninety thousand, five hundred ninety-one".