700991617 has 4 divisors (see below), whose sum is σ = 742226436. Its totient is φ = 659756800.

The previous prime is 700991597. The next prime is 700991647. The reversal of 700991617 is 716199007.

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

It can be written as a sum of positive squares in 2 ways, for example, as 190412401 + 510579216 = 13799^2 + 22596^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-700991617 is a prime.

It is a super-3 number, since 3×700991617³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 700991617.

It is not an unprimeable number, because it can be changed into a prime (700991647) 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, 20617384 + ... + 20617417.

It is an arithmetic number, because the mean of its divisors is an integer number (185556609).

Almost surely, 2^700991617 is an apocalyptic number.

It is an amenable number.

700991617 is a deficient number, since it is larger than the sum of its proper divisors (41234819).

700991617 is a wasteful number, since it uses less digits than its factorization.

700991617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41234818.

The product of its (nonzero) digits is 23814, while the sum is 40.

The square root of 700991617 is about 26476.2462785041. The cubic root of 700991617 is about 888.3230709222.

The spelling of 700991617 in words is "seven hundred million, nine hundred ninety-one thousand, six hundred seventeen".