381823723 has 16 divisors (see below), whose sum is σ = 416638080. Its totient is φ = 348522496.

The previous prime is 381823697. The next prime is 381823727. The reversal of 381823723 is 327328183.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-381823723 is a prime.

It is not an unprimeable number, because it can be changed into a prime (381823727) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88173 + ... + 92401.

It is an arithmetic number, because the mean of its divisors is an integer number (26039880).

Almost surely, 2^381823723 is an apocalyptic number.

381823723 is a deficient number, since it is larger than the sum of its proper divisors (34814357).

381823723 is a wasteful number, since it uses less digits than its factorization.

381823723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4406.

The product of its digits is 48384, while the sum is 37.

The square root of 381823723 is about 19540.3102073636. The cubic root of 381823723 is about 725.4725246209.

It can be divided in two parts, 38182 and 3723, that added together give a triangular number (41905 = T₂₈₉).

The spelling of 381823723 in words is "three hundred eighty-one million, eight hundred twenty-three thousand, seven hundred twenty-three".