2623534 has 4 divisors (see below), whose sum is σ = 3935304. Its totient is φ = 1311766.

The previous prime is 2623531. The next prime is 2623567. The reversal of 2623534 is 4353262.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4353262 = 2 ⋅2176631.

It is a junction number, because it is equal to n+sod(n) for n = 2623499 and 2623508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2623531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655882 + ... + 655885.

It is an arithmetic number, because the mean of its divisors is an integer number (983826).

2^2623534 is an apocalyptic number.

2623534 is a deficient number, since it is larger than the sum of its proper divisors (1311770).

2623534 is a wasteful number, since it uses less digits than its factorization.

2623534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1311769.

The product of its digits is 4320, while the sum is 25.

The square root of 2623534 is about 1619.7326939961. The cubic root of 2623534 is about 137.9205241460.

Adding to 2623534 its reverse (4353262), we get a palindrome (6976796).

The spelling of 2623534 in words is "two million, six hundred twenty-three thousand, five hundred thirty-four".