5991657 has 8 divisors (see below), whose sum is σ = 9130176. Its totient is φ = 3423792.

The previous prime is 5991653. The next prime is 5991659. The reversal of 5991657 is 7561995.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5991657 - 2² = 5991653 is a prime.

5991657 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (5991653) 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, 142638 + ... + 142679.

It is an arithmetic number, because the mean of its divisors is an integer number (1141272).

Almost surely, 2^5991657 is an apocalyptic number.

It is an amenable number.

5991657 is a deficient number, since it is larger than the sum of its proper divisors (3138519).

5991657 is a wasteful number, since it uses less digits than its factorization.

5991657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285327.

The product of its digits is 85050, while the sum is 42.

The square root of 5991657 is about 2447.7861426195. The cubic root of 5991657 is about 181.6277966759.

The spelling of 5991657 in words is "five million, nine hundred ninety-one thousand, six hundred fifty-seven".