700837661 has 4 divisors (see below), whose sum is σ = 701351712. Its totient is φ = 700323612.

The previous prime is 700837651. The next prime is 700837673. The reversal of 700837661 is 166738007.

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: 166738007 = 6473 ⋅25759.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-700837661 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 (700837651) 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, 254975 + ... + 257708.

It is an arithmetic number, because the mean of its divisors is an integer number (175337928).

Almost surely, 2^700837661 is an apocalyptic number.

It is an amenable number.

700837661 is a deficient number, since it is larger than the sum of its proper divisors (514051).

700837661 is a wasteful number, since it uses less digits than its factorization.

700837661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514050.

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 700837661 is about 26473.3386825311. The cubic root of 700837661 is about 888.2580332066.

The spelling of 700837661 in words is "seven hundred million, eight hundred thirty-seven thousand, six hundred sixty-one".