5427391 has 4 divisors (see below), whose sum is σ = 5433472. Its totient is φ = 5421312.

The previous prime is 5427377. The next prime is 5427397. The reversal of 5427391 is 1937245.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1937245 = 5 ⋅387449.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5427391 is a prime.

It is a Duffinian number.

5427391 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5427397) 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 3 ways as a sum of consecutive naturals, for example, 1410 + ... + 3583.

It is an arithmetic number, because the mean of its divisors is an integer number (1358368).

Almost surely, 2^5427391 is an apocalyptic number.

5427391 is a deficient number, since it is larger than the sum of its proper divisors (6081).

5427391 is a wasteful number, since it uses less digits than its factorization.

5427391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6080.

The product of its digits is 7560, while the sum is 31.

The square root of 5427391 is about 2329.6761577524. The cubic root of 5427391 is about 175.7372003329.

The spelling of 5427391 in words is "five million, four hundred twenty-seven thousand, three hundred ninety-one".