378623743 has 4 divisors (see below), whose sum is σ = 379187008. Its totient is φ = 378060480.

The previous prime is 378623737. The next prime is 378623747. The reversal of 378623743 is 347326873.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 347326873 = 181 ⋅1918933.

It is a cyclic number.

It is not a de Polignac number, because 378623743 - 2²⁵ = 345069311 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 378623743.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378623747) 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, 280623 + ... + 281968.

It is an arithmetic number, because the mean of its divisors is an integer number (94796752).

Almost surely, 2^378623743 is an apocalyptic number.

378623743 is a deficient number, since it is larger than the sum of its proper divisors (563265).

378623743 is an equidigital number, since it uses as much as digits as its factorization.

378623743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563264.

The product of its digits is 508032, while the sum is 43.

The square root of 378623743 is about 19458.2564224033. The cubic root of 378623743 is about 723.4401615929.

The spelling of 378623743 in words is "three hundred seventy-eight million, six hundred twenty-three thousand, seven hundred forty-three".