5647791 has 32 divisors (see below), whose sum is σ = 8503488. Its totient is φ = 3317760.

The previous prime is 5647771. The next prime is 5647801. The reversal of 5647791 is 1977465.

It is not a de Polignac number, because 5647791 - 2¹⁵ = 5615023 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5647771) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 77331 + ... + 77403.

It is an arithmetic number, because the mean of its divisors is an integer number (265734).

Almost surely, 2^5647791 is an apocalyptic number.

5647791 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

5647791 is a deficient number, since it is larger than the sum of its proper divisors (2855697).

5647791 is a wasteful number, since it uses less digits than its factorization.

5647791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171.

The product of its digits is 52920, while the sum is 39.

The square root of 5647791 is about 2376.5081527317. The cubic root of 5647791 is about 178.0845346061.

The spelling of 5647791 in words is "five million, six hundred forty-seven thousand, seven hundred ninety-one".