700857643 has 4 divisors (see below), whose sum is σ = 703766008. Its totient is φ = 697949280.

The previous prime is 700857631. The next prime is 700857659. The reversal of 700857643 is 346758007.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 700857643 - 2⁵ = 700857611 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 700857596 and 700857605.

It is not an unprimeable number, because it can be changed into a prime (700857673) 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, 1453821 + ... + 1454302.

It is an arithmetic number, because the mean of its divisors is an integer number (175941502).

Almost surely, 2^700857643 is an apocalyptic number.

700857643 is a deficient number, since it is larger than the sum of its proper divisors (2908365).

700857643 is a wasteful number, since it uses less digits than its factorization.

700857643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2908364.

The product of its (nonzero) digits is 141120, while the sum is 40.

The square root of 700857643 is about 26473.7160784050. The cubic root of 700857643 is about 888.2664750110.

The spelling of 700857643 in words is "seven hundred million, eight hundred fifty-seven thousand, six hundred forty-three".