98431279 has 2 divisors, whose sum is σ = 98431280. Its totient is φ = 98431278.

The previous prime is 98431273. The next prime is 98431327. The reversal of 98431279 is 97213489.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 98431279 - 2³ = 98431271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98431271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49215639 + 49215640.

It is an arithmetic number, because the mean of its divisors is an integer number (49215640).

Almost surely, 2^98431279 is an apocalyptic number.

98431279 is a deficient number, since it is larger than the sum of its proper divisors (1).

98431279 is an equidigital number, since it uses as much as digits as its factorization.

98431279 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108864, while the sum is 43.

The square root of 98431279 is about 9921.2539026073. The cubic root of 98431279 is about 461.7189607136.

The spelling of 98431279 in words is "ninety-eight million, four hundred thirty-one thousand, two hundred seventy-nine".