7853242 has 4 divisors (see below), whose sum is σ = 11779866. Its totient is φ = 3926620.

The previous prime is 7853233. The next prime is 7853249. The reversal of 7853242 is 2423587.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2423587 = 1283 ⋅1889.

It can be written as a sum of positive squares in only one way, i.e., 7230721 + 622521 = 2689^2 + 789^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (7853249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1963309 + ... + 1963312.

Almost surely, 2^7853242 is an apocalyptic number.

7853242 is a deficient number, since it is larger than the sum of its proper divisors (3926624).

7853242 is a wasteful number, since it uses less digits than its factorization.

7853242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3926623.

The product of its digits is 13440, while the sum is 31.

The square root of 7853242 is about 2802.3636452109. The cubic root of 7853242 is about 198.7694610639.

The spelling of 7853242 in words is "seven million, eight hundred fifty-three thousand, two hundred forty-two".