27772002 has 12 divisors (see below), whose sum is σ = 60172710. Its totient is φ = 9257328.

The previous prime is 27771923. The next prime is 27772007. The reversal of 27772002 is 20027772.

It can be written as a sum of positive squares in only one way, i.e., 27657081 + 114921 = 5259^2 + 339^2 .

It is not an unprimeable number, because it can be changed into a prime (27772007) 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, 771427 + ... + 771462.

Almost surely, 2^27772002 is an apocalyptic number.

27772002 is an abundant number, since it is smaller than the sum of its proper divisors (32400708).

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

27772002 is a wasteful number, since it uses less digits than its factorization.

27772002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1542897 (or 1542894 counting only the distinct ones).

The product of its (nonzero) digits is 2744, while the sum is 27.

The square root of 27772002 is about 5269.9148000703. The cubic root of 27772002 is about 302.8324401142.

Adding to 27772002 its reverse (20027772), we get a palindrome (47799774).

The spelling of 27772002 in words is "twenty-seven million, seven hundred seventy-two thousand, two".