697040767 has 2 divisors, whose sum is σ = 697040768. Its totient is φ = 697040766.

The previous prime is 697040753. The next prime is 697040819. The reversal of 697040767 is 767040796.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 697040767 - 2⁷ = 697040639 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 (697044767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 348520383 + 348520384.

It is an arithmetic number, because the mean of its divisors is an integer number (348520384).

Almost surely, 2^697040767 is an apocalyptic number.

697040767 is a deficient number, since it is larger than the sum of its proper divisors (1).

697040767 is an equidigital number, since it uses as much as digits as its factorization.

697040767 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 444528, while the sum is 46.

The square root of 697040767 is about 26401.5296337163. The cubic root of 697040767 is about 886.6510369196.

The spelling of 697040767 in words is "six hundred ninety-seven million, forty thousand, seven hundred sixty-seven".