97577723 has 2 divisors, whose sum is σ = 97577724. Its totient is φ = 97577722.

The previous prime is 97577639. The next prime is 97577729. The reversal of 97577723 is 32777579.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 97577723 - 2¹² = 97573627 is a prime.

It is not a weakly prime, because it can be changed into another prime (97577729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48788861 + 48788862.

It is an arithmetic number, because the mean of its divisors is an integer number (48788862).

Almost surely, 2^97577723 is an apocalyptic number.

97577723 is a deficient number, since it is larger than the sum of its proper divisors (1).

97577723 is an equidigital number, since it uses as much as digits as its factorization.

97577723 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 648270, while the sum is 47.

The square root of 97577723 is about 9878.1437021335. The cubic root of 97577723 is about 460.3804712954.

The spelling of 97577723 in words is "ninety-seven million, five hundred seventy-seven thousand, seven hundred twenty-three".