2630723 has 4 divisors (see below), whose sum is σ = 2656368. Its totient is φ = 2605080.

The previous prime is 2630713. The next prime is 2630729. The reversal of 2630723 is 3270362.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3270362 = 2 ⋅1635181.

It is a cyclic number.

It is not a de Polignac number, because 2630723 - 2⁴ = 2630707 is a prime.

It is a d-powerful number, because it can be written as 2¹¹ + 6 + 3³ + 0 + 7² + 2²¹ + 3¹² .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2630729) 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 in 3 ways as a sum of consecutive naturals, for example, 12668 + ... + 12873.

It is an arithmetic number, because the mean of its divisors is an integer number (664092).

2^2630723 is an apocalyptic number.

2630723 is a deficient number, since it is larger than the sum of its proper divisors (25645).

2630723 is a wasteful number, since it uses less digits than its factorization.

2630723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25644.

The product of its (nonzero) digits is 1512, while the sum is 23.

The square root of 2630723 is about 1621.9503691544. The cubic root of 2630723 is about 138.0463857229.

The spelling of 2630723 in words is "two million, six hundred thirty thousand, seven hundred twenty-three".