7628378 has 12 divisors (see below), whose sum is σ = 11733630. Its totient is φ = 3719520.

The previous prime is 7628377. The next prime is 7628389. The reversal of 7628378 is 8738267.

It can be written as a sum of positive squares in 3 ways, for example, as 779689 + 6848689 = 883^2 + 2617^2 .

It is a Harshad number since it is a multiple of its sum of digits (41).

It is not an unprimeable number, because it can be changed into a prime (7628377) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2228 + ... + 4496.

Almost surely, 2^7628378 is an apocalyptic number.

7628378 is a deficient number, since it is larger than the sum of its proper divisors (4105252).

7628378 is a wasteful number, since it uses less digits than its factorization.

7628378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2353 (or 2312 counting only the distinct ones).

The product of its digits is 112896, while the sum is 41.

The square root of 7628378 is about 2761.9518460683. The cubic root of 7628378 is about 196.8539204104.

The spelling of 7628378 in words is "seven million, six hundred twenty-eight thousand, three hundred seventy-eight".