7936645 has 8 divisors (see below), whose sum is σ = 9549720. Its totient is φ = 6332160.

The previous prime is 7936631. The next prime is 7936667. The reversal of 7936645 is 5466397.

7936645 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2765569 + 5171076 = 1663^2 + 2274^2 .

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

It is not a de Polignac number, because 7936645 - 2⁵ = 7936613 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7936598 and 7936607.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105 + ... + 3985.

It is an arithmetic number, because the mean of its divisors is an integer number (1193715).

Almost surely, 2^7936645 is an apocalyptic number.

It is an amenable number.

7936645 is a deficient number, since it is larger than the sum of its proper divisors (1613075).

7936645 is a wasteful number, since it uses less digits than its factorization.

7936645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4295.

The product of its digits is 136080, while the sum is 40.

The square root of 7936645 is about 2817.2051753467. The cubic root of 7936645 is about 199.4706418023.

The spelling of 7936645 in words is "seven million, nine hundred thirty-six thousand, six hundred forty-five".