737561 has 8 divisors (see below), whose sum is σ = 847200. Its totient is φ = 635040.

The previous prime is 737537. The next prime is 737563. The reversal of 737561 is 165737.

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 737561 - 2⁶ = 737497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (737563) 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, 1556 + ... + 1973.

It is an arithmetic number, because the mean of its divisors is an integer number (105900).

2⁷³⁷⁵⁶¹ is an apocalyptic number.

It is an amenable number.

737561 is a deficient number, since it is larger than the sum of its proper divisors (109639).

737561 is a wasteful number, since it uses less digits than its factorization.

737561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3559.

The product of its digits is 4410, while the sum is 29.

The square root of 737561 is about 858.8137167046. The cubic root of 737561 is about 90.3509343601.

The spelling of 737561 in words is "seven hundred thirty-seven thousand, five hundred sixty-one".