98989951 has 2 divisors, whose sum is σ = 98989952. Its totient is φ = 98989950.

The previous prime is 98989903. The next prime is 98989967. The reversal of 98989951 is 15998989.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 98989951 - 2⁹ = 98989439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98989651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49494975 + 49494976.

It is an arithmetic number, because the mean of its divisors is an integer number (49494976).

Almost surely, 2^98989951 is an apocalyptic number.

98989951 is a deficient number, since it is larger than the sum of its proper divisors (1).

98989951 is an equidigital number, since it uses as much as digits as its factorization.

98989951 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2099520, while the sum is 58.

The square root of 98989951 is about 9949.3693770007. The cubic root of 98989951 is about 462.5908480899.

The spelling of 98989951 in words is "ninety-eight million, nine hundred eighty-nine thousand, nine hundred fifty-one".