5400891 has 8 divisors (see below), whose sum is σ = 8001360. Its totient is φ = 3600576.

The previous prime is 5400881. The next prime is 5400949. The reversal of 5400891 is 1980045.

It is not a de Polignac number, because 5400891 - 2⁶ = 5400827 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 200033 = 5400891 / (5 + 4 + 0 + 0 + 8 + 9 + 1).

5400891 is a modest number, since divided by 891 gives 540 as remainder.

It is not an unprimeable number, because it can be changed into a prime (5400821) 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, 99990 + ... + 100043.

It is an arithmetic number, because the mean of its divisors is an integer number (1000170).

Almost surely, 2^5400891 is an apocalyptic number.

5400891 is a deficient number, since it is larger than the sum of its proper divisors (2600469).

5400891 is a wasteful number, since it uses less digits than its factorization.

5400891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200042 (or 200036 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 5400891 is about 2323.9817124926. The cubic root of 5400891 is about 175.4507130206.

The spelling of 5400891 in words is "five million, four hundred thousand, eight hundred ninety-one".