97791767 has 2 divisors, whose sum is σ = 97791768. Its totient is φ = 97791766.

The previous prime is 97791739. The next prime is 97791781. The reversal of 97791767 is 76719779.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 97791767 - 2¹⁶ = 97726231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97791737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48895883 + 48895884.

It is an arithmetic number, because the mean of its divisors is an integer number (48895884).

Almost surely, 2^97791767 is an apocalyptic number.

97791767 is a deficient number, since it is larger than the sum of its proper divisors (1).

97791767 is an equidigital number, since it uses as much as digits as its factorization.

97791767 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1166886, while the sum is 53.

The square root of 97791767 is about 9888.9719890391. The cubic root of 97791767 is about 460.7168517363.

The spelling of 97791767 in words is "ninety-seven million, seven hundred ninety-one thousand, seven hundred sixty-seven".