97769407 has 2 divisors, whose sum is σ = 97769408. Its totient is φ = 97769406.

The previous prime is 97769387. The next prime is 97769417. The reversal of 97769407 is 70496779.

It is a strong prime.

It is an emirp because it is prime and its reverse (70496779) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 97769407 - 2⁷ = 97769279 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97769417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48884703 + 48884704.

It is an arithmetic number, because the mean of its divisors is an integer number (48884704).

Almost surely, 2^97769407 is an apocalyptic number.

97769407 is a deficient number, since it is larger than the sum of its proper divisors (1).

97769407 is an equidigital number, since it uses as much as digits as its factorization.

97769407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 666792, while the sum is 49.

The square root of 97769407 is about 9887.8413721095. The cubic root of 97769407 is about 460.6817348944.

The spelling of 97769407 in words is "ninety-seven million, seven hundred sixty-nine thousand, four hundred seven".