799666497 has 24 divisors (see below), whose sum is σ = 1320830784. Its totient is φ = 456693984.

The previous prime is 799666493. The next prime is 799666499. The reversal of 799666497 is 794666997.

It is not a de Polignac number, because 799666497 - 2² = 799666493 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (799666493) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 197263 + ... + 201275.

It is an arithmetic number, because the mean of its divisors is an integer number (55034616).

Almost surely, 2^799666497 is an apocalyptic number.

It is an amenable number.

799666497 is a deficient number, since it is larger than the sum of its proper divisors (521164287).

799666497 is a wasteful number, since it uses less digits than its factorization.

799666497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7189 (or 7186 counting only the distinct ones).

The product of its digits is 30862944, while the sum is 63.

The square root of 799666497 is about 28278.3750770797. The cubic root of 799666497 is about 928.1887501427.

The spelling of 799666497 in words is "seven hundred ninety-nine million, six hundred sixty-six thousand, four hundred ninety-seven".