2774864 has 10 divisors (see below), whose sum is σ = 5376330. Its totient is φ = 1387424.

The previous prime is 2774851. The next prime is 2774867. The reversal of 2774864 is 4684772.

It can be written as a sum of positive squares in only one way, i.e., 2689600 + 85264 = 1640^2 + 292^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2774867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86699 + ... + 86730.

It is an arithmetic number, because the mean of its divisors is an integer number (537633).

2^2774864 is an apocalyptic number.

It is an amenable number.

2774864 is a deficient number, since it is larger than the sum of its proper divisors (2601466).

2774864 is a wasteful number, since it uses less digits than its factorization.

2774864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173437 (or 173431 counting only the distinct ones).

The product of its digits is 75264, while the sum is 38.

The square root of 2774864 is about 1665.7923039803. The cubic root of 2774864 is about 140.5229421805.

The spelling of 2774864 in words is "two million, seven hundred seventy-four thousand, eight hundred sixty-four".