697004197 has 2 divisors, whose sum is σ = 697004198. Its totient is φ = 697004196.

The previous prime is 697004179. The next prime is 697004201. The reversal of 697004197 is 791400796.

It is a happy number.

Together with previous prime (697004179) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 618964641 + 78039556 = 24879^2 + 8834^2 .

It is a cyclic number.

It is not a de Polignac number, because 697004197 - 2⁷ = 697004069 is a prime.

It is a super-2 number, since 2×697004197² = 971629701271229618, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (697004177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 348502098 + 348502099.

It is an arithmetic number, because the mean of its divisors is an integer number (348502099).

Almost surely, 2^697004197 is an apocalyptic number.

It is an amenable number.

697004197 is a deficient number, since it is larger than the sum of its proper divisors (1).

697004197 is an equidigital number, since it uses as much as digits as its factorization.

697004197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 95256, while the sum is 43.

The square root of 697004197 is about 26400.8370511240. The cubic root of 697004197 is about 886.6355307029.

The spelling of 697004197 in words is "six hundred ninety-seven million, four thousand, one hundred ninety-seven".