1234643 has 8 divisors (see below), whose sum is σ = 1277760. Its totient is φ = 1192320.

The previous prime is 1234627. The next prime is 1234657. The reversal of 1234643 is 3464321.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1234643 - 2⁴ = 1234627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1234603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5003 + ... + 5243.

It is an arithmetic number, because the mean of its divisors is an integer number (159720).

2^1234643 is an apocalyptic number.

1234643 is a deficient number, since it is larger than the sum of its proper divisors (43117).

1234643 is a wasteful number, since it uses less digits than its factorization.

1234643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397.

The product of its digits is 1728, while the sum is 23.

The square root of 1234643 is about 1111.1449050416. The cubic root of 1234643 is about 107.2787734572.

Adding to 1234643 its reverse (3464321), we get a palindrome (4698964).

The spelling of 1234643 in words is "one million, two hundred thirty-four thousand, six hundred forty-three".