5767661 has 4 divisors (see below), whose sum is σ = 5773824. Its totient is φ = 5761500.

The previous prime is 5767649. The next prime is 5767669. The reversal of 5767661 is 1667675.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 5767661 - 2²² = 1573357 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 (5767669) 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, 1355 + ... + 3656.

It is an arithmetic number, because the mean of its divisors is an integer number (1443456).

Almost surely, 2^5767661 is an apocalyptic number.

It is an amenable number.

5767661 is a deficient number, since it is larger than the sum of its proper divisors (6163).

5767661 is a wasteful number, since it uses less digits than its factorization.

5767661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6162.

The product of its digits is 52920, while the sum is 38.

The square root of 5767661 is about 2401.5955113216. The cubic root of 5767661 is about 179.3356269735.

The spelling of 5767661 in words is "five million, seven hundred sixty-seven thousand, six hundred sixty-one".