7876045 has 4 divisors (see below), whose sum is σ = 9451260. Its totient is φ = 6300832.

The previous prime is 7876031. The next prime is 7876069. The reversal of 7876045 is 5406787.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5406787 = 1163 ⋅4649.

It can be written as a sum of positive squares in 2 ways, for example, as 1022121 + 6853924 = 1011^2 + 2618^2 .

It is a cyclic number.

It is not a de Polignac number, because 7876045 - 2²¹ = 5778893 is a prime.

7876045 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 7875995 and 7876013.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 787600 + ... + 787609.

It is an arithmetic number, because the mean of its divisors is an integer number (2362815).

Almost surely, 2^7876045 is an apocalyptic number.

It is an amenable number.

7876045 is a deficient number, since it is larger than the sum of its proper divisors (1575215).

7876045 is a wasteful number, since it uses less digits than its factorization.

7876045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1575214.

The product of its (nonzero) digits is 47040, while the sum is 37.

The square root of 7876045 is about 2806.4292259026. The cubic root of 7876045 is about 198.9616602485.

The spelling of 7876045 in words is "seven million, eight hundred seventy-six thousand, forty-five".