3091742 has 4 divisors (see below), whose sum is σ = 4637616. Its totient is φ = 1545870.

The previous prime is 3091741. The next prime is 3091747. The reversal of 3091742 is 2471903.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3091741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 772934 + ... + 772937.

It is an arithmetic number, because the mean of its divisors is an integer number (1159404).

Almost surely, 2^3091742 is an apocalyptic number.

3091742 is a deficient number, since it is larger than the sum of its proper divisors (1545874).

3091742 is a wasteful number, since it uses less digits than its factorization.

3091742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1545873.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 3091742 is about 1758.3350078981. The cubic root of 3091742 is about 145.6803854606.

The spelling of 3091742 in words is "three million, ninety-one thousand, seven hundred forty-two".