2772765 has 64 divisors (see below), whose sum is σ = 5529600. Its totient is φ = 1311552.

The previous prime is 2772761. The next prime is 2772767. The reversal of 2772765 is 5672772.

It is not a de Polignac number, because 2772765 - 2² = 2772761 is a prime.

It is a Curzon number.

2772765 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2772761) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 58972 + ... + 59018.

It is an arithmetic number, because the mean of its divisors is an integer number (86400).

2^2772765 is an apocalyptic number.

It is an amenable number.

2772765 is a deficient number, since it is larger than the sum of its proper divisors (2756835).

2772765 is a wasteful number, since it uses less digits than its factorization.

2772765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103 (or 97 counting only the distinct ones).

The product of its digits is 41160, while the sum is 36.

The square root of 2772765 is about 1665.1621542661. The cubic root of 2772765 is about 140.4875011572.

The spelling of 2772765 in words is "two million, seven hundred seventy-two thousand, seven hundred sixty-five".