2499973 has 4 divisors (see below), whose sum is σ = 2857120. Its totient is φ = 2142828.

The previous prime is 2499967. The next prime is 2499983. The reversal of 2499973 is 3799942.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2499973 - 2⁵ = 2499941 is a prime.

It is a d-powerful number, because it can be written as 2⁵ + 4⁷ + 9² + 9⁴ + 9⁵ + 7⁷ + 3¹³ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2499923) 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, 178563 + ... + 178576.

It is an arithmetic number, because the mean of its divisors is an integer number (714280).

2^2499973 is an apocalyptic number.

It is an amenable number.

2499973 is a deficient number, since it is larger than the sum of its proper divisors (357147).

2499973 is an equidigital number, since it uses as much as digits as its factorization.

2499973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357146.

The product of its digits is 122472, while the sum is 43.

The square root of 2499973 is about 1581.1302919115. The cubic root of 2499973 is about 135.7203922328.

It can be divided in two parts, 249997 and 3, that added together give a square (250000 = 500²).

The spelling of 2499973 in words is "two million, four hundred ninety-nine thousand, nine hundred seventy-three".