7927812 has 18 divisors (see below), whose sum is σ = 20039838. Its totient is φ = 2642592.

The previous prime is 7927811. The next prime is 7927823. The reversal of 7927812 is 2187297.

It can be written as a sum of positive squares in only one way, i.e., 7918596 + 9216 = 2814^2 + 96^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 220217 = 7927812 / (7 + 9 + 2 + 7 + 8 + 1 + 2).

It is not an unprimeable number, because it can be changed into a prime (7927811) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 110073 + ... + 110144.

Almost surely, 2^7927812 is an apocalyptic number.

It is an amenable number.

7927812 is an abundant number, since it is smaller than the sum of its proper divisors (12112026).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7927812 is a wasteful number, since it uses less digits than its factorization.

7927812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220227 (or 220222 counting only the distinct ones).

The product of its digits is 14112, while the sum is 36.

The square root of 7927812 is about 2815.6370504737. The cubic root of 7927812 is about 199.3966147954.

The spelling of 7927812 in words is "seven million, nine hundred twenty-seven thousand, eight hundred twelve".