98143831 has 2 divisors, whose sum is σ = 98143832. Its totient is φ = 98143830.

The previous prime is 98143823. The next prime is 98143867. The reversal of 98143831 is 13834189.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 98143831 - 2³ = 98143823 is a prime.

It is a super-2 number, since 2×98143831² = 19264423126713122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (48143831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49071915 + 49071916.

It is an arithmetic number, because the mean of its divisors is an integer number (49071916).

Almost surely, 2^98143831 is an apocalyptic number.

98143831 is a deficient number, since it is larger than the sum of its proper divisors (1).

98143831 is an equidigital number, since it uses as much as digits as its factorization.

98143831 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20736, while the sum is 37.

The square root of 98143831 is about 9906.7568356148. The cubic root of 98143831 is about 461.2690712169.

The spelling of 98143831 in words is "ninety-eight million, one hundred forty-three thousand, eight hundred thirty-one".