378626873 has 4 divisors (see below), whose sum is σ = 400899060. Its totient is φ = 356354688.

The previous prime is 378626863. The next prime is 378626887.

It is a happy number.

378626873 is nontrivially palindromic in base 10.

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

It can be written as a sum of positive squares in 2 ways, for example, as 165817129 + 212809744 = 12877^2 + 14588^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-378626873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (378626803) 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, 11136068 + ... + 11136101.

It is an arithmetic number, because the mean of its divisors is an integer number (100224765).

Almost surely, 2^378626873 is an apocalyptic number.

It is an amenable number.

378626873 is a deficient number, since it is larger than the sum of its proper divisors (22272187).

378626873 is a wasteful number, since it uses less digits than its factorization.

378626873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22272186.

The product of its digits is 2032128, while the sum is 50.

The square root of 378626873 is about 19458.3368508205. The cubic root of 378626873 is about 723.4421550948.

The spelling of 378626873 in words is "three hundred seventy-eight million, six hundred twenty-six thousand, eight hundred seventy-three".