7987394 has 16 divisors (see below), whose sum is σ = 12648960. Its totient is φ = 3775200.

The previous prime is 7987393. The next prime is 7987403. The reversal of 7987394 is 4937897.

It is a super-2 number, since 2×7987394² = 127596925822472, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7987393) by changing a digit.

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, 3119 + ... + 5069.

It is an arithmetic number, because the mean of its divisors is an integer number (790560).

Almost surely, 2^7987394 is an apocalyptic number.

7987394 is a deficient number, since it is larger than the sum of its proper divisors (4661566).

7987394 is a wasteful number, since it uses less digits than its factorization.

7987394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2065.

The product of its digits is 381024, while the sum is 47.

The square root of 7987394 is about 2826.1977991641. The cubic root of 7987394 is about 199.8948947741.

It can be divided in two parts, 798 and 7394, that added together give a 13-th power (8192 = 2¹³).

The spelling of 7987394 in words is "seven million, nine hundred eighty-seven thousand, three hundred ninety-four".