2772819 has 32 divisors (see below), whose sum is σ = 4976640. Its totient is φ = 1489536.

The previous prime is 2772767. The next prime is 2772827. The reversal of 2772819 is 9182772.

It is not a de Polignac number, because 2772819 - 2¹¹ = 2770771 is a prime.

It is a super-4 number, since 4×2772819⁴ (a number of 27 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (2772829) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2782 + ... + 3644.

It is an arithmetic number, because the mean of its divisors is an integer number (155520).

2^2772819 is an apocalyptic number.

2772819 is a deficient number, since it is larger than the sum of its proper divisors (2203821).

2772819 is a wasteful number, since it uses less digits than its factorization.

2772819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 896 (or 890 counting only the distinct ones).

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

The square root of 2772819 is about 1665.1783688242. The cubic root of 2772819 is about 140.4884131561.

The spelling of 2772819 in words is "two million, seven hundred seventy-two thousand, eight hundred nineteen".