5391691 has 4 divisors (see below), whose sum is σ = 5472232. Its totient is φ = 5311152.

The previous prime is 5391689. The next prime is 5391697. The reversal of 5391691 is 1961935.

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

It is a cyclic number.

It is not a de Polignac number, because 5391691 - 2¹ = 5391689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5391697) 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, 40170 + ... + 40303.

It is an arithmetic number, because the mean of its divisors is an integer number (1368058).

Almost surely, 2^5391691 is an apocalyptic number.

5391691 is a deficient number, since it is larger than the sum of its proper divisors (80541).

5391691 is an equidigital number, since it uses as much as digits as its factorization.

5391691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80540.

The product of its digits is 7290, while the sum is 34.

The square root of 5391691 is about 2322.0015073208. The cubic root of 5391691 is about 175.3510341619.

The spelling of 5391691 in words is "five million, three hundred ninety-one thousand, six hundred ninety-one".