5737661 has 4 divisors (see below), whose sum is σ = 5791392. Its totient is φ = 5683932.

The previous prime is 5737643. The next prime is 5737703. The reversal of 5737661 is 1667375.

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 5737661 - 2⁶ = 5737597 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 (5737631) 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, 26705 + ... + 26918.

It is an arithmetic number, because the mean of its divisors is an integer number (1447848).

Almost surely, 2^5737661 is an apocalyptic number.

It is an amenable number.

5737661 is a deficient number, since it is larger than the sum of its proper divisors (53731).

5737661 is a wasteful number, since it uses less digits than its factorization.

5737661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53730.

The product of its digits is 26460, while the sum is 35.

The square root of 5737661 is about 2395.3415205352. The cubic root of 5737661 is about 179.0241532902.

The spelling of 5737661 in words is "five million, seven hundred thirty-seven thousand, six hundred sixty-one".