2478723 has 12 divisors (see below), whose sum is σ = 3579480. Its totient is φ = 1525056.

The previous prime is 2478713. The next prime is 2478727. The reversal of 2478723 is 3278742.

It is not a de Polignac number, because 2478723 - 2⁵ = 2478691 is a prime.

It is a super-2 number, since 2×2478723² = 12288135421458, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2478727) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1938 + ... + 2951.

It is an arithmetic number, because the mean of its divisors is an integer number (298290).

2^2478723 is an apocalyptic number.

2478723 is a deficient number, since it is larger than the sum of its proper divisors (1100757).

2478723 is a wasteful number, since it uses less digits than its factorization.

2478723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4918 (or 4905 counting only the distinct ones).

The product of its digits is 18816, while the sum is 33.

The square root of 2478723 is about 1574.3960746902. The cubic root of 2478723 is about 135.3347522372.

The spelling of 2478723 in words is "two million, four hundred seventy-eight thousand, seven hundred twenty-three".