98973997 has 2 divisors, whose sum is σ = 98973998. Its totient is φ = 98973996.

The previous prime is 98973989. The next prime is 98974009. The reversal of 98973997 is 79937989.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 88566921 + 10407076 = 9411^2 + 3226^2 .

It is a cyclic number.

It is not a de Polignac number, because 98973997 - 2³ = 98973989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98973947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49486998 + 49486999.

It is an arithmetic number, because the mean of its divisors is an integer number (49486999).

Almost surely, 2^98973997 is an apocalyptic number.

It is an amenable number.

98973997 is a deficient number, since it is larger than the sum of its proper divisors (1).

98973997 is an equidigital number, since it uses as much as digits as its factorization.

98973997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7715736, while the sum is 61.

The square root of 98973997 is about 9948.5675853361. The cubic root of 98973997 is about 462.5659951601.

The spelling of 98973997 in words is "ninety-eight million, nine hundred seventy-three thousand, nine hundred ninety-seven".