799966489 has 4 divisors (see below), whose sum is σ = 914247424. Its totient is φ = 685685556.

The previous prime is 799966463. The next prime is 799966493. The reversal of 799966489 is 984669997.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 984669997 = 23 ⋅42811739.

It is a cyclic number.

It is not a de Polignac number, because 799966489 - 2¹⁷ = 799835417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (799966429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57140457 + ... + 57140470.

It is an arithmetic number, because the mean of its divisors is an integer number (228561856).

Almost surely, 2^799966489 is an apocalyptic number.

It is an amenable number.

799966489 is a deficient number, since it is larger than the sum of its proper divisors (114280935).

799966489 is a wasteful number, since it uses less digits than its factorization.

799966489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114280934.

The product of its digits is 52907904, while the sum is 67.

The square root of 799966489 is about 28283.6788448745. The cubic root of 799966489 is about 928.3048045179.

The spelling of 799966489 in words is "seven hundred ninety-nine million, nine hundred sixty-six thousand, four hundred eighty-nine".