5671641 has 4 divisors (see below), whose sum is σ = 7562192. Its totient is φ = 3781092.

The previous prime is 5671621. The next prime is 5671649. The reversal of 5671641 is 1461765.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 5671641 - 2⁵ = 5671609 is a prime.

It is a D-number.

It is a Duffinian number.

5671641 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 5671599 and 5671608.

It is not an unprimeable number, because it can be changed into a prime (5671649) 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, 945271 + ... + 945276.

It is an arithmetic number, because the mean of its divisors is an integer number (1890548).

Almost surely, 2^5671641 is an apocalyptic number.

It is an amenable number.

5671641 is a deficient number, since it is larger than the sum of its proper divisors (1890551).

5671641 is a wasteful number, since it uses less digits than its factorization.

5671641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1890550.

The product of its digits is 5040, while the sum is 30.

The square root of 5671641 is about 2381.5207326412. The cubic root of 5671641 is about 178.3348597030.

The spelling of 5671641 in words is "five million, six hundred seventy-one thousand, six hundred forty-one".