701649 has 16 divisors (see below), whose sum is σ = 1120000. Its totient is φ = 431568.

The previous prime is 701629. The next prime is 701653. The reversal of 701649 is 946107.

701649 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 701649 - 2¹² = 697553 is a prime.

It is a super-2 number, since 2×701649² = 984622638402, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (701609) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 649 + ... + 1350.

It is an arithmetic number, because the mean of its divisors is an integer number (70000).

2⁷⁰¹⁶⁴⁹ is an apocalyptic number.

It is an amenable number.

701649 is a deficient number, since it is larger than the sum of its proper divisors (418351).

701649 is a wasteful number, since it uses less digits than its factorization.

701649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2021 (or 2015 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 701649 is about 837.6449128360. The cubic root of 701649 is about 88.8600671024.

The spelling of 701649 in words is "seven hundred one thousand, six hundred forty-nine".