5537691 has 6 divisors (see below), whose sum is σ = 7998900. Its totient is φ = 3691788.

The previous prime is 5537689. The next prime is 5537713. The reversal of 5537691 is 1967355.

It is a happy number.

It is not a de Polignac number, because 5537691 - 2¹ = 5537689 is a prime.

It is a super-2 number, since 2×5537691² = 61332043222962, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5537611) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 307641 + ... + 307658.

It is an arithmetic number, because the mean of its divisors is an integer number (1333150).

Almost surely, 2^5537691 is an apocalyptic number.

5537691 is a deficient number, since it is larger than the sum of its proper divisors (2461209).

5537691 is a wasteful number, since it uses less digits than its factorization.

5537691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 615305 (or 615302 counting only the distinct ones).

The product of its digits is 28350, while the sum is 36.

The square root of 5537691 is about 2353.2299080200. The cubic root of 5537691 is about 176.9197184521.

The spelling of 5537691 in words is "five million, five hundred thirty-seven thousand, six hundred ninety-one".