7925378 has 4 divisors (see below), whose sum is σ = 11888070. Its totient is φ = 3962688.

The previous prime is 7925377. The next prime is 7925389. The reversal of 7925378 is 8735297.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8735297 = 17 ⋅513841.

It can be written as a sum of positive squares in only one way, i.e., 7327849 + 597529 = 2707^2 + 773^2 .

It is a super-3 number, since 3×7925378³ (a number of 22 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (7925377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1981343 + ... + 1981346.

Almost surely, 2^7925378 is an apocalyptic number.

7925378 is a deficient number, since it is larger than the sum of its proper divisors (3962692).

7925378 is a wasteful number, since it uses less digits than its factorization.

7925378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3962691.

The product of its digits is 105840, while the sum is 41.

The square root of 7925378 is about 2815.2047882881. The cubic root of 7925378 is about 199.3762064307.

The spelling of 7925378 in words is "seven million, nine hundred twenty-five thousand, three hundred seventy-eight".