97717667 has 2 divisors, whose sum is σ = 97717668. Its totient is φ = 97717666.

The previous prime is 97717657. The next prime is 97717679. The reversal of 97717667 is 76671779.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 97717667 - 2¹² = 97713571 is a prime.

It is not a weakly prime, because it can be changed into another prime (97717657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48858833 + 48858834.

It is an arithmetic number, because the mean of its divisors is an integer number (48858834).

Almost surely, 2^97717667 is an apocalyptic number.

97717667 is a deficient number, since it is larger than the sum of its proper divisors (1).

97717667 is an equidigital number, since it uses as much as digits as its factorization.

97717667 is an evil number, because the sum of its binary digits is even.

The product of its digits is 777924, while the sum is 50.

The square root of 97717667 is about 9885.2246813110. The cubic root of 97717667 is about 460.6004556218.

The spelling of 97717667 in words is "ninety-seven million, seven hundred seventeen thousand, six hundred sixty-seven".