5290891 has 4 divisors (see below), whose sum is σ = 5318784. Its totient is φ = 5263000.

The previous prime is 5290877. The next prime is 5290907. The reversal of 5290891 is 1980925.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5290891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5290871) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13660 + ... + 14041.

It is an arithmetic number, because the mean of its divisors is an integer number (1329696).

Almost surely, 2^5290891 is an apocalyptic number.

5290891 is a deficient number, since it is larger than the sum of its proper divisors (27893).

5290891 is a wasteful number, since it uses less digits than its factorization.

5290891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27892.

The product of its (nonzero) digits is 6480, while the sum is 34.

The square root of 5290891 is about 2300.1936874968. The cubic root of 5290891 is about 174.2513981720.

Adding to 5290891 its sum of digits (34), we get a palindrome (5290925).

The spelling of 5290891 in words is "five million, two hundred ninety thousand, eight hundred ninety-one".