5691407 has 4 divisors (see below), whose sum is σ = 5727816. Its totient is φ = 5655000.

The previous prime is 5691403. The next prime is 5691409. The reversal of 5691407 is 7041965.

It is a happy number.

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 5691407 - 2² = 5691403 is a prime.

It is a super-2 number, since 2×5691407² = 64784227279298, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5691403) 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, 17969 + ... + 18282.

It is an arithmetic number, because the mean of its divisors is an integer number (1431954).

Almost surely, 2^5691407 is an apocalyptic number.

5691407 is a deficient number, since it is larger than the sum of its proper divisors (36409).

5691407 is a wasteful number, since it uses less digits than its factorization.

5691407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36408.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 5691407 is about 2385.6669926878. Note that the first 3 decimals coincide. The cubic root of 5691407 is about 178.5417886348.

The spelling of 5691407 in words is "five million, six hundred ninety-one thousand, four hundred seven".