2391794 has 4 divisors (see below), whose sum is σ = 3587694. Its totient is φ = 1195896.

The previous prime is 2391769. The next prime is 2391799. The reversal of 2391794 is 4971932.

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

It can be written as a sum of positive squares in only one way, i.e., 2211169 + 180625 = 1487^2 + 425^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2391799) 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, 597947 + ... + 597950.

2^2391794 is an apocalyptic number.

2391794 is a deficient number, since it is larger than the sum of its proper divisors (1195900).

2391794 is a wasteful number, since it uses less digits than its factorization.

2391794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1195899.

The product of its digits is 13608, while the sum is 35.

The square root of 2391794 is about 1546.5425955983. The cubic root of 2391794 is about 133.7338222492.

The spelling of 2391794 in words is "two million, three hundred ninety-one thousand, seven hundred ninety-four".