701981 has 12 divisors (see below), whose sum is σ = 854688. Its totient is φ = 564672.

The previous prime is 701969. The next prime is 702007. The reversal of 701981 is 189107.

It is a de Polignac number, because none of the positive numbers 2^k-701981 is a prime.

It is a super-2 number, since 2×701981² = 985554648722, which contains 22 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 701981.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 701981.

It is not an unprimeable number, because it can be changed into a prime (701951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1850 + ... + 2196.

It is an arithmetic number, because the mean of its divisors is an integer number (71224).

2⁷⁰¹⁹⁸¹ is an apocalyptic number.

It is an amenable number.

701981 is a deficient number, since it is larger than the sum of its proper divisors (152707).

701981 is a wasteful number, since it uses less digits than its factorization.

701981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388 (or 371 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 26.

The square root of 701981 is about 837.8430640639. The cubic root of 701981 is about 88.8740802298.

The spelling of 701981 in words is "seven hundred one thousand, nine hundred eighty-one".