5291643 has 8 divisors (see below), whose sum is σ = 8063488. Its totient is φ = 3023784.

The previous prime is 5291639. The next prime is 5291647. The reversal of 5291643 is 3461925.

It is an interprime number because it is at equal distance from previous prime (5291639) and next prime (5291647).

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

It is not a de Polignac number, because 5291643 - 2² = 5291639 is a prime.

It is a Duffinian number.

5291643 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 5291643.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5291647) 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, 125971 + ... + 126012.

It is an arithmetic number, because the mean of its divisors is an integer number (1007936).

Almost surely, 2^5291643 is an apocalyptic number.

5291643 is a deficient number, since it is larger than the sum of its proper divisors (2771845).

5291643 is a wasteful number, since it uses less digits than its factorization.

5291643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251993.

The product of its digits is 6480, while the sum is 30.

The square root of 5291643 is about 2300.3571461840. The cubic root of 5291643 is about 174.2596532935.

The spelling of 5291643 in words is "five million, two hundred ninety-one thousand, six hundred forty-three".