1908814497 has 12 divisors (see below), whose sum is σ = 2615736816. Its totient is φ = 1238147280.

The previous prime is 1908814387. The next prime is 1908814513. The reversal of 1908814497 is 7944188091.

It is not a de Polignac number, because 1908814497 - 2⁸ = 1908814241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1908814997) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 228279 + ... + 236492.

It is an arithmetic number, because the mean of its divisors is an integer number (217978068).

Almost surely, 2^1908814497 is an apocalyptic number.

It is an amenable number.

1908814497 is a deficient number, since it is larger than the sum of its proper divisors (706922319).

1908814497 is an equidigital number, since it uses as much as digits as its factorization.

1908814497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464848 (or 464811 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 51.

The square root of 1908814497 is about 43689.9816548371. The cubic root of 1908814497 is about 1240.4746918697.

The spelling of 1908814497 in words is "one billion, nine hundred eight million, eight hundred fourteen thousand, four hundred ninety-seven".