788117497 has 2 divisors, whose sum is σ = 788117498. Its totient is φ = 788117496.

The previous prime is 788117437. The next prime is 788117503. The reversal of 788117497 is 794711887.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 557715456 + 230402041 = 23616^2 + 15179^2 .

It is a cyclic number.

It is not a de Polignac number, because 788117497 - 2¹⁵ = 788084729 is a prime.

It is a super-2 number, since 2×788117497² = 1242258378155090018, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (788117437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 394058748 + 394058749.

It is an arithmetic number, because the mean of its divisors is an integer number (394058749).

Almost surely, 2^788117497 is an apocalyptic number.

It is an amenable number.

788117497 is a deficient number, since it is larger than the sum of its proper divisors (1).

788117497 is an equidigital number, since it uses as much as digits as its factorization.

788117497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 790272, while the sum is 52.

The square root of 788117497 is about 28073.4304458860. The cubic root of 788117497 is about 923.6986802735.

The spelling of 788117497 in words is "seven hundred eighty-eight million, one hundred seventeen thousand, four hundred ninety-seven".