754661 has 4 divisors (see below), whose sum is σ = 794400. Its totient is φ = 714924.

The previous prime is 754651. The next prime is 754703. The reversal of 754661 is 166457.

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 a cyclic number.

It is not a de Polignac number, because 754661 - 2⁶ = 754597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (754651) 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 3 ways as a sum of consecutive naturals, for example, 19841 + ... + 19878.

It is an arithmetic number, because the mean of its divisors is an integer number (198600).

2⁷⁵⁴⁶⁶¹ is an apocalyptic number.

754661 is the 389-th centered decagonal number.

It is an amenable number.

754661 is a deficient number, since it is larger than the sum of its proper divisors (39739).

754661 is a wasteful number, since it uses less digits than its factorization.

754661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39738.

The product of its digits is 5040, while the sum is 29.

The square root of 754661 is about 868.7122653675. The cubic root of 754661 is about 91.0438544008.

The spelling of 754661 in words is "seven hundred fifty-four thousand, six hundred sixty-one".