701661 has 8 divisors (see below), whose sum is σ = 976320. Its totient is φ = 447392.

The previous prime is 701653. The next prime is 701669. The reversal of 701661 is 166107.

It is an interprime number because it is at equal distance from previous prime (701653) and next prime (701669).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 701661 - 2³ = 701653 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (701669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5016 + ... + 5153.

It is an arithmetic number, because the mean of its divisors is an integer number (122040).

2⁷⁰¹⁶⁶¹ is an apocalyptic number.

It is an amenable number.

701661 is a deficient number, since it is larger than the sum of its proper divisors (274659).

701661 is a wasteful number, since it uses less digits than its factorization.

701661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10195.

The product of its (nonzero) digits is 252, while the sum is 21.

The square root of 701661 is about 837.6520757451. The cubic root of 701661 is about 88.8605736780.

Adding to 701661 its reverse (166107), we get a palindrome (867768).

The spelling of 701661 in words is "seven hundred one thousand, six hundred sixty-one".