2745471 has 4 divisors (see below), whose sum is σ = 3660632. Its totient is φ = 1830312.

The previous prime is 2745467. The next prime is 2745473. The reversal of 2745471 is 1745472.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2745471 - 2² = 2745467 is a prime.

It is a super-3 number, since 3×2745471³ = 62082877326870366333, which contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an Ulam number.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2745473) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 457576 + ... + 457581.

It is an arithmetic number, because the mean of its divisors is an integer number (915158).

2^2745471 is an apocalyptic number.

2745471 is a deficient number, since it is larger than the sum of its proper divisors (915161).

2745471 is an equidigital number, since it uses as much as digits as its factorization.

2745471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 915160.

The product of its digits is 7840, while the sum is 30.

The square root of 2745471 is about 1656.9462876026. The cubic root of 2745471 is about 140.0250125378.

Subtracting from 2745471 its reverse (1745472), we obtain a palindrome (999999).

The spelling of 2745471 in words is "two million, seven hundred forty-five thousand, four hundred seventy-one".