799929997 has 8 divisors (see below), whose sum is σ = 836047800. Its totient is φ = 764381184.

The previous prime is 799929979. The next prime is 799930073.

799929997 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 4 ways, for example, as 97732996 + 702197001 = 9886^2 + 26499^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-799929997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (799924997) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139372 + ... + 144997.

It is an arithmetic number, because the mean of its divisors is an integer number (104505975).

Almost surely, 2^799929997 is an apocalyptic number.

It is an amenable number.

799929997 is a deficient number, since it is larger than the sum of its proper divisors (36117803).

799929997 is a wasteful number, since it uses less digits than its factorization.

799929997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284495.

The product of its digits is 52081218, while the sum is 70.

The square root of 799929997 is about 28283.0337304894. The cubic root of 799929997 is about 928.2906888375.

The spelling of 799929997 in words is "seven hundred ninety-nine million, nine hundred twenty-nine thousand, nine hundred ninety-seven".