701617891 has 4 divisors (see below), whose sum is σ = 755588512. Its totient is φ = 647647272.

The previous prime is 701617867. The next prime is 701617907. The reversal of 701617891 is 198716107.

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 701617891 - 2¹¹ = 701615843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (701617801) 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, 26985291 + ... + 26985316.

It is an arithmetic number, because the mean of its divisors is an integer number (188897128).

Almost surely, 2^701617891 is an apocalyptic number.

701617891 is a deficient number, since it is larger than the sum of its proper divisors (53970621).

701617891 is a wasteful number, since it uses less digits than its factorization.

701617891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53970620.

The product of its (nonzero) digits is 21168, while the sum is 40.

The square root of 701617891 is about 26488.0707300475. The cubic root of 701617891 is about 888.5875382060.

The spelling of 701617891 in words is "seven hundred one million, six hundred seventeen thousand, eight hundred ninety-one".