378723 has 4 divisors (see below), whose sum is σ = 504968. Its totient is φ = 252480.

The previous prime is 378713. The next prime is 378733. The reversal of 378723 is 327873.

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

It is an interprime number because it is at equal distance from previous prime (378713) and next prime (378733).

It is not a de Polignac number, because 378723 - 2⁵ = 378691 is a prime.

It is a super-2 number, since 2×378723² = 286862221458, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is a zygodrome in base 15.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 378723.

It is not an unprimeable number, because it can be changed into a prime (378713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63118 + ... + 63123.

It is an arithmetic number, because the mean of its divisors is an integer number (126242).

2³⁷⁸⁷²³ is an apocalyptic number.

378723 is a deficient number, since it is larger than the sum of its proper divisors (126245).

378723 is a wasteful number, since it uses less digits than its factorization.

378723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126244.

The product of its digits is 7056, while the sum is 30.

The square root of 378723 is about 615.4047448631. The cubic root of 378723 is about 72.3503373183.

The spelling of 378723 in words is "three hundred seventy-eight thousand, seven hundred twenty-three".