7876345 has 4 divisors (see below), whose sum is σ = 9451620. Its totient is φ = 6301072.

The previous prime is 7876343. The next prime is 7876357. The reversal of 7876345 is 5436787.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5436787 = 17 ⋅319811.

It can be written as a sum of positive squares in 2 ways, for example, as 5697769 + 2178576 = 2387^2 + 1476^2 .

It is a cyclic number.

It is not a de Polignac number, because 7876345 - 2¹ = 7876343 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 7876298 and 7876307.

It is not an unprimeable number, because it can be changed into a prime (7876343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 787630 + ... + 787639.

It is an arithmetic number, because the mean of its divisors is an integer number (2362905).

Almost surely, 2^7876345 is an apocalyptic number.

It is an amenable number.

7876345 is a deficient number, since it is larger than the sum of its proper divisors (1575275).

7876345 is a wasteful number, since it uses less digits than its factorization.

7876345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1575274.

The product of its digits is 141120, while the sum is 40.

The square root of 7876345 is about 2806.4826740958. The cubic root of 7876345 is about 198.9641863785.

The spelling of 7876345 in words is "seven million, eight hundred seventy-six thousand, three hundred forty-five".