5270991 has 16 divisors (see below), whose sum is σ = 7713408. Its totient is φ = 3175200.

The previous prime is 5270987. The next prime is 5271041. The reversal of 5270991 is 1990725.

It is not a de Polignac number, because 5270991 - 2² = 5270987 is a prime.

It is a super-2 number, since 2×5270991² = 55566692244162, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5270921) 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 15 ways as a sum of consecutive naturals, for example, 6585 + ... + 7341.

It is an arithmetic number, because the mean of its divisors is an integer number (482088).

Almost surely, 2^5270991 is an apocalyptic number.

5270991 is a deficient number, since it is larger than the sum of its proper divisors (2442417).

5270991 is a wasteful number, since it uses less digits than its factorization.

5270991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 982.

The product of its (nonzero) digits is 5670, while the sum is 33.

The square root of 5270991 is about 2295.8638896938. The cubic root of 5270991 is about 174.0326600075.

The spelling of 5270991 in words is "five million, two hundred seventy thousand, nine hundred ninety-one".