701986643 has 4 divisors (see below), whose sum is σ = 715231728. Its totient is φ = 688741560.

The previous prime is 701986639. The next prime is 701986651. The reversal of 701986643 is 346689107.

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 701986643 - 2² = 701986639 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 701986594 and 701986603.

It is not an unprimeable number, because it can be changed into a prime (701986603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6622463 + ... + 6622568.

It is an arithmetic number, because the mean of its divisors is an integer number (178807932).

Almost surely, 2^701986643 is an apocalyptic number.

701986643 is a deficient number, since it is larger than the sum of its proper divisors (13245085).

701986643 is a wasteful number, since it uses less digits than its factorization.

701986643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13245084.

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 701986643 is about 26495.0305340454. The cubic root of 701986643 is about 888.7431837258.

The spelling of 701986643 in words is "seven hundred one million, nine hundred eighty-six thousand, six hundred forty-three".