660701 has 4 divisors (see below), whose sum is σ = 662592. Its totient is φ = 658812.

The previous prime is 660683. The next prime is 660719. The reversal of 660701 is 107066.

660701 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (660683) and next prime (660719).

It is a cyclic number.

It is not a de Polignac number, because 660701 - 2¹⁸ = 398557 is a prime.

It is a super-2 number, since 2×660701² = 873051622802, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (660731) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 251 + ... + 1176.

It is an arithmetic number, because the mean of its divisors is an integer number (165648).

2⁶⁶⁰⁷⁰¹ is an apocalyptic number.

It is an amenable number.

660701 is a deficient number, since it is larger than the sum of its proper divisors (1891).

660701 is a wasteful number, since it uses less digits than its factorization.

660701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1890.

The product of its (nonzero) digits is 252, while the sum is 20.

The square root of 660701 is about 812.8351616410. The cubic root of 660701 is about 87.0966908432.

Adding to 660701 its reverse (107066), we get a palindrome (767767).

The spelling of 660701 in words is "six hundred sixty thousand, seven hundred one".