2709423 has 16 divisors (see below), whose sum is σ = 4189440. Its totient is φ = 1727352.

The previous prime is 2709397. The next prime is 2709467. The reversal of 2709423 is 3249072.

It is not a de Polignac number, because 2709423 - 2⁵ = 2709391 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2709023) 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, 1561 + ... + 2802.

It is an arithmetic number, because the mean of its divisors is an integer number (261840).

2^2709423 is an apocalyptic number.

2709423 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2709423 is a deficient number, since it is larger than the sum of its proper divisors (1480017).

2709423 is a wasteful number, since it uses less digits than its factorization.

2709423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4395 (or 4389 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 2709423 is about 1646.0325027168. The cubic root of 2709423 is about 139.4094683732.

The spelling of 2709423 in words is "two million, seven hundred nine thousand, four hundred twenty-three".