378734827 has 2 divisors, whose sum is σ = 378734828. Its totient is φ = 378734826.

The previous prime is 378734821. The next prime is 378734831. The reversal of 378734827 is 728437873.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 378734827 - 2³ = 378734819 is a prime.

It is not a weakly prime, because it can be changed into another prime (378734821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189367413 + 189367414.

It is an arithmetic number, because the mean of its divisors is an integer number (189367414).

Almost surely, 2^378734827 is an apocalyptic number.

378734827 is a deficient number, since it is larger than the sum of its proper divisors (1).

378734827 is an equidigital number, since it uses as much as digits as its factorization.

378734827 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1580544, while the sum is 49.

The square root of 378734827 is about 19461.1106312050. The cubic root of 378734827 is about 723.5109044438.

The spelling of 378734827 in words is "three hundred seventy-eight million, seven hundred thirty-four thousand, eight hundred twenty-seven".