7938874 has 4 divisors (see below), whose sum is σ = 11908314. Its totient is φ = 3969436.

The previous prime is 7938859. The next prime is 7938877. The reversal of 7938874 is 4788397.

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., 5489649 + 2449225 = 2343^2 + 1565^2 .

It is a d-powerful number, because it can be written as 7⁷ + 9² + 3⁵ + 8 + 8⁷ + 7⁷ + 4¹¹ .

It is not an unprimeable number, because it can be changed into a prime (7938877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1984717 + ... + 1984720.

Almost surely, 2^7938874 is an apocalyptic number.

7938874 is a deficient number, since it is larger than the sum of its proper divisors (3969440).

7938874 is a wasteful number, since it uses less digits than its factorization.

7938874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3969439.

The product of its digits is 338688, while the sum is 46.

The square root of 7938874 is about 2817.6007524133. The cubic root of 7938874 is about 199.4893137745.

The spelling of 7938874 in words is "seven million, nine hundred thirty-eight thousand, eight hundred seventy-four".