5601891 has 8 divisors (see below), whose sum is σ = 7908624. Its totient is φ = 3514880.

The previous prime is 5601889. The next prime is 5601907. The reversal of 5601891 is 1981065.

It is a happy number.

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 5601891 - 2¹ = 5601889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5601881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54870 + ... + 54971.

It is an arithmetic number, because the mean of its divisors is an integer number (988578).

Almost surely, 2^5601891 is an apocalyptic number.

5601891 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

5601891 is a deficient number, since it is larger than the sum of its proper divisors (2306733).

5601891 is a wasteful number, since it uses less digits than its factorization.

5601891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109861.

The product of its (nonzero) digits is 2160, while the sum is 30.

The square root of 5601891 is about 2366.8314261899. The cubic root of 5601891 is about 177.6007865094.

The spelling of 5601891 in words is "five million, six hundred one thousand, eight hundred ninety-one".