807117497 has 2 divisors, whose sum is σ = 807117498. Its totient is φ = 807117496.

The previous prime is 807117469. The next prime is 807117523. The reversal of 807117497 is 794711708.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 756195001 + 50922496 = 27499^2 + 7136^2 .

It is a cyclic number.

It is not a de Polignac number, because 807117497 - 2¹⁰ = 807116473 is a prime.

It is not a weakly prime, because it can be changed into another prime (807117427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 403558748 + 403558749.

It is an arithmetic number, because the mean of its divisors is an integer number (403558749).

Almost surely, 2^807117497 is an apocalyptic number.

It is an amenable number.

807117497 is a deficient number, since it is larger than the sum of its proper divisors (1).

807117497 is an equidigital number, since it uses as much as digits as its factorization.

807117497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 98784, while the sum is 44.

The square root of 807117497 is about 28409.8133925586. The cubic root of 807117497 is about 931.0626835715.

The spelling of 807117497 in words is "eight hundred seven million, one hundred seventeen thousand, four hundred ninety-seven".