700813643 has 4 divisors (see below), whose sum is σ = 701288328. Its totient is φ = 700338960.

The previous prime is 700813639. The next prime is 700813693. The reversal of 700813643 is 346318007.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 346318007 = 7 ⋅49474001.

It is a cyclic number.

It is not a de Polignac number, because 700813643 - 2² = 700813639 is a prime.

It is a super-2 number, since 2×700813643² = 982279524429862898, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (700813693) 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, 235121 + ... + 238082.

It is an arithmetic number, because the mean of its divisors is an integer number (175322082).

Almost surely, 2^700813643 is an apocalyptic number.

700813643 is a deficient number, since it is larger than the sum of its proper divisors (474685).

700813643 is a wasteful number, since it uses less digits than its factorization.

700813643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474684.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 700813643 is about 26472.8850524456. The cubic root of 700813643 is about 888.2478860992.

The spelling of 700813643 in words is "seven hundred million, eight hundred thirteen thousand, six hundred forty-three".