5072391 has 6 divisors (see below), whose sum is σ = 7326800. Its totient is φ = 3381588.

The previous prime is 5072371. The next prime is 5072393. The reversal of 5072391 is 1932705.

It is not a de Polignac number, because 5072391 - 2⁵ = 5072359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5072393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 281791 + ... + 281808.

Almost surely, 2^5072391 is an apocalyptic number.

5072391 is a deficient number, since it is larger than the sum of its proper divisors (2254409).

5072391 is a wasteful number, since it uses less digits than its factorization.

5072391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 563605 (or 563602 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 27.

The square root of 5072391 is about 2252.1969274466. The cubic root of 5072391 is about 171.8188894968.

The spelling of 5072391 in words is "five million, seventy-two thousand, three hundred ninety-one".