1823725973 has 4 divisors (see below), whose sum is σ = 1835342220. Its totient is φ = 1812109728.

The previous prime is 1823725957. The next prime is 1823725999. The reversal of 1823725973 is 3795273281.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 824723524 + 999002449 = 28718^2 + 31607^2 .

It is a cyclic number.

It is not a de Polignac number, because 1823725973 - 2⁴ = 1823725957 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1823725903) 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, 5807888 + ... + 5808201.

It is an arithmetic number, because the mean of its divisors is an integer number (458835555).

Almost surely, 2^1823725973 is an apocalyptic number.

It is an amenable number.

1823725973 is a deficient number, since it is larger than the sum of its proper divisors (11616247).

1823725973 is a wasteful number, since it uses less digits than its factorization.

1823725973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11616246.

The product of its digits is 635040, while the sum is 47.

The square root of 1823725973 is about 42705.1047651215. The cubic root of 1823725973 is about 1221.7617593028.

The spelling of 1823725973 in words is "one billion, eight hundred twenty-three million, seven hundred twenty-five thousand, nine hundred seventy-three".