5631091 has 8 divisors (see below), whose sum is σ = 5778864. Its totient is φ = 5484960.

The previous prime is 5631083. The next prime is 5631107. The reversal of 5631091 is 1901365.

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

It is a cyclic number.

It is not a de Polignac number, because 5631091 - 2³ = 5631083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5631061) 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, 9300 + ... + 9886.

It is an arithmetic number, because the mean of its divisors is an integer number (722358).

Almost surely, 2^5631091 is an apocalyptic number.

5631091 is a deficient number, since it is larger than the sum of its proper divisors (147773).

5631091 is a wasteful number, since it uses less digits than its factorization.

5631091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 821.

The product of its (nonzero) digits is 810, while the sum is 25.

The square root of 5631091 is about 2372.9919932440. The cubic root of 5631091 is about 177.9088347708.

The spelling of 5631091 in words is "five million, six hundred thirty-one thousand, ninety-one".