97061791 has 2 divisors, whose sum is σ = 97061792. Its totient is φ = 97061790.

The previous prime is 97061737. The next prime is 97061803. The reversal of 97061791 is 19716079.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 97061791 - 2⁷ = 97061663 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97061711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48530895 + 48530896.

It is an arithmetic number, because the mean of its divisors is an integer number (48530896).

Almost surely, 2^97061791 is an apocalyptic number.

97061791 is a deficient number, since it is larger than the sum of its proper divisors (1).

97061791 is an equidigital number, since it uses as much as digits as its factorization.

97061791 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23814, while the sum is 40.

The square root of 97061791 is about 9851.9942651222. The cubic root of 97061791 is about 459.5676324848.

The spelling of 97061791 in words is "ninety-seven million, sixty-one thousand, seven hundred ninety-one".