98421031 has 2 divisors, whose sum is σ = 98421032. Its totient is φ = 98421030.

The previous prime is 98421019. The next prime is 98421067. The reversal of 98421031 is 13012489.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 98421031 - 2¹⁵ = 98388263 is a prime.

It is a super-2 number, since 2×98421031² = 19373398686205922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98421131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49210515 + 49210516.

It is an arithmetic number, because the mean of its divisors is an integer number (49210516).

Almost surely, 2^98421031 is an apocalyptic number.

98421031 is a deficient number, since it is larger than the sum of its proper divisors (1).

98421031 is an equidigital number, since it uses as much as digits as its factorization.

98421031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 98421031 is about 9920.7374221879. The cubic root of 98421031 is about 461.7029364708.

The spelling of 98421031 in words is "ninety-eight million, four hundred twenty-one thousand, thirty-one".