696447247 has 2 divisors, whose sum is σ = 696447248. Its totient is φ = 696447246.

The previous prime is 696447163. The next prime is 696447251. The reversal of 696447247 is 742744696.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 696447247 - 2⁷ = 696447119 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 696447247.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (696447277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 348223623 + 348223624.

It is an arithmetic number, because the mean of its divisors is an integer number (348223624).

Almost surely, 2^696447247 is an apocalyptic number.

696447247 is a deficient number, since it is larger than the sum of its proper divisors (1).

696447247 is an equidigital number, since it uses as much as digits as its factorization.

696447247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2032128, while the sum is 49.

The square root of 696447247 is about 26390.2869821455. The cubic root of 696447247 is about 886.3993086696.

The spelling of 696447247 in words is "six hundred ninety-six million, four hundred forty-seven thousand, two hundred forty-seven".