913908497 has 2 divisors, whose sum is σ = 913908498. Its totient is φ = 913908496.

The previous prime is 913908487. The next prime is 913908509. The reversal of 913908497 is 794809319.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 789385216 + 124523281 = 28096^2 + 11159^2 .

It is a cyclic number.

It is not a de Polignac number, because 913908497 - 2¹² = 913904401 is a prime.

It is not a weakly prime, because it can be changed into another prime (913908487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 456954248 + 456954249.

It is an arithmetic number, because the mean of its divisors is an integer number (456954249).

Almost surely, 2^913908497 is an apocalyptic number.

It is an amenable number.

913908497 is a deficient number, since it is larger than the sum of its proper divisors (1).

913908497 is an equidigital number, since it uses as much as digits as its factorization.

913908497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 489888, while the sum is 50.

The square root of 913908497 is about 30230.9195526699. The cubic root of 913908497 is about 970.4375030702.

The spelling of 913908497 in words is "nine hundred thirteen million, nine hundred eight thousand, four hundred ninety-seven".