2774739 has 16 divisors (see below), whose sum is σ = 4124160. Its totient is φ = 1644960.

The previous prime is 2774731. The next prime is 2774767. The reversal of 2774739 is 9374772.

It is not a de Polignac number, because 2774739 - 2³ = 2774731 is a prime.

It is a d-powerful number, because it can be written as 2 + 7³ + 7⁷ + 4¹⁰ + 7⁷ + 3⁹ + 9⁵ .

It is a junction number, because it is equal to n+sod(n) for n = 2774697 and 2774706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2774731) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 657 + ... + 2445.

It is an arithmetic number, because the mean of its divisors is an integer number (257760).

2^2774739 is an apocalyptic number.

2774739 is a deficient number, since it is larger than the sum of its proper divisors (1349421).

2774739 is a wasteful number, since it uses less digits than its factorization.

2774739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1850.

The product of its digits is 74088, while the sum is 39.

The square root of 2774739 is about 1665.7547838743. The cubic root of 2774739 is about 140.5208320913.

The spelling of 2774739 in words is "two million, seven hundred seventy-four thousand, seven hundred thirty-nine".