378766723 has 4 divisors (see below), whose sum is σ = 378860760. Its totient is φ = 378672688.

The previous prime is 378766721. The next prime is 378766757. The reversal of 378766723 is 327667873.

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

It is a cyclic number.

It is not a de Polignac number, because 378766723 - 2¹ = 378766721 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (378766721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40693 + ... + 49126.

It is an arithmetic number, because the mean of its divisors is an integer number (94715190).

Almost surely, 2^378766723 is an apocalyptic number.

378766723 is a deficient number, since it is larger than the sum of its proper divisors (94037).

378766723 is an equidigital number, since it uses as much as digits as its factorization.

378766723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94036.

The product of its digits is 1778112, while the sum is 49.

The square root of 378766723 is about 19461.9300944177. The cubic root of 378766723 is about 723.5312145696.

The spelling of 378766723 in words is "three hundred seventy-eight million, seven hundred sixty-six thousand, seven hundred twenty-three".