7876745 has 8 divisors (see below), whose sum is σ = 9707784. Its totient is φ = 6130944.

The previous prime is 7876733. The next prime is 7876753. The reversal of 7876745 is 5476787.

It can be written as a sum of positive squares in 4 ways, for example, as 3984016 + 3892729 = 1996^2 + 1973^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7876745 - 2¹⁴ = 7860361 is a prime.

It is a super-2 number, since 2×7876745² = 124086223590050, which contains 22 as substring.

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

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7876696 and 7876705.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21104 + ... + 21473.

It is an arithmetic number, because the mean of its divisors is an integer number (1213473).

Almost surely, 2^7876745 is an apocalyptic number.

It is an amenable number.

7876745 is a deficient number, since it is larger than the sum of its proper divisors (1831039).

7876745 is a wasteful number, since it uses less digits than its factorization.

7876745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42619.

The product of its digits is 329280, while the sum is 44.

The square root of 7876745 is about 2806.5539367701. The cubic root of 7876745 is about 198.9675544520.

The spelling of 7876745 in words is "seven million, eight hundred seventy-six thousand, seven hundred forty-five".