700079921 has 4 divisors (see below), whose sum is σ = 706622832. Its totient is φ = 693537012.

The previous prime is 700079903. The next prime is 700079929. The reversal of 700079921 is 129970007.

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: 129970007 = 647 ⋅200881.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-700079921 is a prime.

It is a super-2 number, since 2×700079921² = 980223791574732482, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (700079929) 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 3 ways as a sum of consecutive naturals, for example, 3271295 + ... + 3271508.

It is an arithmetic number, because the mean of its divisors is an integer number (176655708).

Almost surely, 2^700079921 is an apocalyptic number.

It is an amenable number.

700079921 is a deficient number, since it is larger than the sum of its proper divisors (6542911).

700079921 is a wasteful number, since it uses less digits than its factorization.

700079921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6542910.

The product of its (nonzero) digits is 7938, while the sum is 35.

The square root of 700079921 is about 26459.0234324701. The cubic root of 700079921 is about 887.9377919689.

The spelling of 700079921 in words is "seven hundred million, seventy-nine thousand, nine hundred twenty-one".