3147641 has 4 divisors (see below), whose sum is σ = 3597312. Its totient is φ = 2697972.

The previous prime is 3147629. The next prime is 3147649. The reversal of 3147641 is 1467413.

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 a cyclic number.

It is not a de Polignac number, because 3147641 - 2¹⁰ = 3146617 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3147641.

It is not an unprimeable number, because it can be changed into a prime (3147649) 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, 224825 + ... + 224838.

It is an arithmetic number, because the mean of its divisors is an integer number (899328).

Almost surely, 2^3147641 is an apocalyptic number.

It is an amenable number.

3147641 is a deficient number, since it is larger than the sum of its proper divisors (449671).

3147641 is an equidigital number, since it uses as much as digits as its factorization.

3147641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449670.

The product of its digits is 2016, while the sum is 26.

The square root of 3147641 is about 1774.1592374981. The cubic root of 3147641 is about 146.5531186116.

The spelling of 3147641 in words is "three million, one hundred forty-seven thousand, six hundred forty-one".