97799573 has 2 divisors, whose sum is σ = 97799574. Its totient is φ = 97799572.

The previous prime is 97799557. The next prime is 97799609. The reversal of 97799573 is 37599779.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 90193009 + 7606564 = 9497^2 + 2758^2 .

It is a cyclic number.

It is not a de Polignac number, because 97799573 - 2⁴ = 97799557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97799543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48899786 + 48899787.

It is an arithmetic number, because the mean of its divisors is an integer number (48899787).

Almost surely, 2^97799573 is an apocalyptic number.

It is an amenable number.

97799573 is a deficient number, since it is larger than the sum of its proper divisors (1).

97799573 is an equidigital number, since it uses as much as digits as its factorization.

97799573 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3750705, while the sum is 56.

The square root of 97799573 is about 9889.3666632399. The cubic root of 97799573 is about 460.7291099599.

The spelling of 97799573 in words is "ninety-seven million, seven hundred ninety-nine thousand, five hundred seventy-three".