69697997 has 2 divisors, whose sum is σ = 69697998. Its totient is φ = 69697996.

The previous prime is 69697949. The next prime is 69698017. The reversal of 69697997 is 79979696.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68326756 + 1371241 = 8266^2 + 1171^2 .

It is a cyclic number.

It is not a de Polignac number, because 69697997 - 2⁸ = 69697741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (69697097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34848998 + 34848999.

It is an arithmetic number, because the mean of its divisors is an integer number (34848999).

Almost surely, 2^69697997 is an apocalyptic number.

It is an amenable number.

69697997 is a deficient number, since it is larger than the sum of its proper divisors (1).

69697997 is an equidigital number, since it uses as much as digits as its factorization.

69697997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11573604, while the sum is 62.

The square root of 69697997 is about 8348.5326255576. The cubic root of 69697997 is about 411.5349896207.

The spelling of 69697997 in words is "sixty-nine million, six hundred ninety-seven thousand, nine hundred ninety-seven".