752661 has 24 divisors (see below), whose sum is σ = 1339520. Its totient is φ = 396576.

The previous prime is 752651. The next prime is 752681. The reversal of 752661 is 166257.

It is not a de Polignac number, because 752661 - 2⁹ = 752149 is a prime.

It is a Curzon number.

752661 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (752651) 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 23 ways as a sum of consecutive naturals, for example, 360 + ... + 1278.

2⁷⁵²⁶⁶¹ is an apocalyptic number.

It is an amenable number.

752661 is a deficient number, since it is larger than the sum of its proper divisors (586859).

752661 is a wasteful number, since it uses less digits than its factorization.

752661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 945 (or 942 counting only the distinct ones).

The product of its digits is 2520, while the sum is 27.

The square root of 752661 is about 867.5603725390. The cubic root of 752661 is about 90.9633552089.

The spelling of 752661 in words is "seven hundred fifty-two thousand, six hundred sixty-one".