378836825 has 6 divisors (see below), whose sum is σ = 469757694. Its totient is φ = 303069440.

The previous prime is 378836819. The next prime is 378836863. The reversal of 378836825 is 528638873.

It can be written as a sum of positive squares in 3 ways, for example, as 1545049 + 377291776 = 1243^2 + 19424^2 .

It is not a de Polignac number, because 378836825 - 2⁸ = 378836569 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7576712 + ... + 7576761.

It is an arithmetic number, because the mean of its divisors is an integer number (78292949).

Almost surely, 2^378836825 is an apocalyptic number.

It is an amenable number.

378836825 is a deficient number, since it is larger than the sum of its proper divisors (90920869).

378836825 is a wasteful number, since it uses less digits than its factorization.

378836825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15153483 (or 15153478 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 50.

The square root of 378836825 is about 19463.7310143765. The cubic root of 378836825 is about 723.5758487761.

The spelling of 378836825 in words is "three hundred seventy-eight million, eight hundred thirty-six thousand, eight hundred twenty-five".