799697977 has 8 divisors (see below), whose sum is σ = 875810880. Its totient is φ = 725670480.

The previous prime is 799697957. The next prime is 799698023. The reversal of 799697977 is 779796997.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 799697977 - 2²³ = 791309369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (799697957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 520549 + ... + 522082.

It is an arithmetic number, because the mean of its divisors is an integer number (109476360).

Almost surely, 2^799697977 is an apocalyptic number.

It is an amenable number.

799697977 is a deficient number, since it is larger than the sum of its proper divisors (76112903).

799697977 is a wasteful number, since it uses less digits than its factorization.

799697977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1042703.

The product of its digits is 94517766, while the sum is 70.

The square root of 799697977 is about 28278.9316806700. The cubic root of 799697977 is about 928.2009298029.

The spelling of 799697977 in words is "seven hundred ninety-nine million, six hundred ninety-seven thousand, nine hundred seventy-seven".