98401637 has 2 divisors, whose sum is σ = 98401638. Its totient is φ = 98401636.

The previous prime is 98401619. The next prime is 98401651. The reversal of 98401637 is 73610489.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 88472836 + 9928801 = 9406^2 + 3151^2 .

It is a cyclic number.

It is not a de Polignac number, because 98401637 - 2¹⁸ = 98139493 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 98401637.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98401607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49200818 + 49200819.

It is an arithmetic number, because the mean of its divisors is an integer number (49200819).

Almost surely, 2^98401637 is an apocalyptic number.

It is an amenable number.

98401637 is a deficient number, since it is larger than the sum of its proper divisors (1).

98401637 is an equidigital number, since it uses as much as digits as its factorization.

98401637 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 98401637 is about 9919.7599265305. The cubic root of 98401637 is about 461.6726080784.

The spelling of 98401637 in words is "ninety-eight million, four hundred one thousand, six hundred thirty-seven".