98993651 has 2 divisors, whose sum is σ = 98993652. Its totient is φ = 98993650.

The previous prime is 98993599. The next prime is 98993693. The reversal of 98993651 is 15639989.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-98993651 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 98993651.

It is not a weakly prime, because it can be changed into another prime (98993051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49496825 + 49496826.

It is an arithmetic number, because the mean of its divisors is an integer number (49496826).

Almost surely, 2^98993651 is an apocalyptic number.

98993651 is a deficient number, since it is larger than the sum of its proper divisors (1).

98993651 is an equidigital number, since it uses as much as digits as its factorization.

98993651 is an evil number, because the sum of its binary digits is even.

The product of its digits is 524880, while the sum is 50.

The square root of 98993651 is about 9949.5553166963. Note that the first 3 decimals coincide. The cubic root of 98993651 is about 462.5966115194.

The spelling of 98993651 in words is "ninety-eight million, nine hundred ninety-three thousand, six hundred fifty-one".