98152391 has 2 divisors, whose sum is σ = 98152392. Its totient is φ = 98152390.

The previous prime is 98152381. The next prime is 98152399. The reversal of 98152391 is 19325189.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 98152391 - 2²² = 93958087 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98152399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49076195 + 49076196.

It is an arithmetic number, because the mean of its divisors is an integer number (49076196).

Almost surely, 2^98152391 is an apocalyptic number.

98152391 is a deficient number, since it is larger than the sum of its proper divisors (1).

98152391 is an equidigital number, since it uses as much as digits as its factorization.

98152391 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19440, while the sum is 38.

The square root of 98152391 is about 9907.1888545641. The cubic root of 98152391 is about 461.2824812921.

The spelling of 98152391 in words is "ninety-eight million, one hundred fifty-two thousand, three hundred ninety-one".