2749523 has 8 divisors (see below), whose sum is σ = 3174240. Its totient is φ = 2332800.

The previous prime is 2749511. The next prime is 2749531. The reversal of 2749523 is 3259472.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2749523 - 2¹⁶ = 2683987 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2749523.

It is not an unprimeable number, because it can be changed into a prime (2749543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1238 + ... + 2651.

It is an arithmetic number, because the mean of its divisors is an integer number (396780).

2^2749523 is an apocalyptic number.

2749523 is a deficient number, since it is larger than the sum of its proper divisors (424717).

2749523 is a wasteful number, since it uses less digits than its factorization.

2749523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3997.

The product of its digits is 15120, while the sum is 32.

The square root of 2749523 is about 1658.1685680292. The cubic root of 2749523 is about 140.0938656234.

It can be divided in two parts, 2 and 749523, that multiplied together give a triangular number (1499046 = T₁₇₃₁).

The spelling of 2749523 in words is "two million, seven hundred forty-nine thousand, five hundred twenty-three".