5729661 has 12 divisors (see below), whose sum is σ = 9458592. Its totient is φ = 3274056.

The previous prime is 5729657. The next prime is 5729683. The reversal of 5729661 is 1669275.

It is not a de Polignac number, because 5729661 - 2² = 5729657 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5729161) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45411 + ... + 45536.

It is an arithmetic number, because the mean of its divisors is an integer number (788216).

Almost surely, 2^5729661 is an apocalyptic number.

It is an amenable number.

5729661 is a deficient number, since it is larger than the sum of its proper divisors (3728931).

5729661 is a wasteful number, since it uses less digits than its factorization.

5729661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90960 (or 90957 counting only the distinct ones).

The product of its digits is 22680, while the sum is 36.

The square root of 5729661 is about 2393.6710300290. The cubic root of 5729661 is about 178.9409103464.

The spelling of 5729661 in words is "five million, seven hundred twenty-nine thousand, six hundred sixty-one".