378623 has 6 divisors (see below), whose sum is σ = 440496. Its totient is φ = 324492.

The previous prime is 378619. The next prime is 378629. The reversal of 378623 is 326873.

It is not a de Polignac number, because 378623 - 2² = 378619 is a prime.

It is a super-2 number, since 2×378623² = 286710752258, which contains 22 as substring.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 378623.

It is not an unprimeable number, because it can be changed into a prime (378629) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3815 + ... + 3912.

It is an arithmetic number, because the mean of its divisors is an integer number (73416).

2³⁷⁸⁶²³ is an apocalyptic number.

378623 is a deficient number, since it is larger than the sum of its proper divisors (61873).

378623 is an equidigital number, since it uses as much as digits as its factorization.

378623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7741 (or 7734 counting only the distinct ones).

The product of its digits is 6048, while the sum is 29.

The square root of 378623 is about 615.3234921568. The cubic root of 378623 is about 72.3439688373.

It can be divided in two parts, 3786 and 23, that multiplied together give a palindrome (87078).

The spelling of 378623 in words is "three hundred seventy-eight thousand, six hundred twenty-three".