98794721 has 2 divisors, whose sum is σ = 98794722. Its totient is φ = 98794720.

The previous prime is 98794681. The next prime is 98794727. The reversal of 98794721 is 12749789.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67881121 + 30913600 = 8239^2 + 5560^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-98794721 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (98794727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49397360 + 49397361.

It is an arithmetic number, because the mean of its divisors is an integer number (49397361).

Almost surely, 2^98794721 is an apocalyptic number.

It is an amenable number.

98794721 is a deficient number, since it is larger than the sum of its proper divisors (1).

98794721 is an equidigital number, since it uses as much as digits as its factorization.

98794721 is an evil number, because the sum of its binary digits is even.

The product of its digits is 254016, while the sum is 47.

The square root of 98794721 is about 9939.5533601868. The cubic root of 98794721 is about 462.2865375784.

The spelling of 98794721 in words is "ninety-eight million, seven hundred ninety-four thousand, seven hundred twenty-one".