7834387 has 6 divisors (see below), whose sum is σ = 8611484. Its totient is φ = 7122060.

The previous prime is 7834381. The next prime is 7834427.

7834387 is nontrivially palindromic in base 10.

7834387 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 7834387 - 2⁷ = 7834259 is a prime.

It is a super-2 number, since 2×7834387² = 122755239331538, 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 not an unprimeable number, because it can be changed into a prime (7834381) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 32253 + ... + 32494.

Almost surely, 2^7834387 is an apocalyptic number.

7834387 is a deficient number, since it is larger than the sum of its proper divisors (777097).

7834387 is a wasteful number, since it uses less digits than its factorization.

7834387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64769 (or 64758 counting only the distinct ones).

The product of its digits is 112896, while the sum is 40.

The square root of 7834387 is about 2798.9974991057. The cubic root of 7834387 is about 198.6102571079.

The spelling of 7834387 in words is "seven million, eight hundred thirty-four thousand, three hundred eighty-seven".