7794242 has 4 divisors (see below), whose sum is σ = 11691366. Its totient is φ = 3897120.

The previous prime is 7794239. The next prime is 7794247. The reversal of 7794242 is 2424977.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2424977 = 991 ⋅2447.

It can be written as a sum of positive squares in only one way, i.e., 6964321 + 829921 = 2639^2 + 911^2 .

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (7794247) 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, 1948559 + ... + 1948562.

Almost surely, 2^7794242 is an apocalyptic number.

7794242 is a deficient number, since it is larger than the sum of its proper divisors (3897124).

7794242 is a wasteful number, since it uses less digits than its factorization.

7794242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3897123.

The product of its digits is 28224, while the sum is 35.

The square root of 7794242 is about 2791.8169710782. The cubic root of 7794242 is about 198.2704361596.

The spelling of 7794242 in words is "seven million, seven hundred ninety-four thousand, two hundred forty-two".