97519801 has 2 divisors, whose sum is σ = 97519802. Its totient is φ = 97519800.

The previous prime is 97519787. The next prime is 97519813. The reversal of 97519801 is 10891579.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 84732025 + 12787776 = 9205^2 + 3576^2 .

It is a cyclic number.

It is not a de Polignac number, because 97519801 - 2¹¹ = 97517753 is a prime.

It is a super-2 number, since 2×97519801² = 19020223174159202, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (97519601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48759900 + 48759901.

It is an arithmetic number, because the mean of its divisors is an integer number (48759901).

Almost surely, 2^97519801 is an apocalyptic number.

It is an amenable number.

97519801 is a deficient number, since it is larger than the sum of its proper divisors (1).

97519801 is an equidigital number, since it uses as much as digits as its factorization.

97519801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22680, while the sum is 40.

The square root of 97519801 is about 9875.2114407743. The cubic root of 97519801 is about 460.2893595303.

The spelling of 97519801 in words is "ninety-seven million, five hundred nineteen thousand, eight hundred one".