378534983 has 2 divisors, whose sum is σ = 378534984. Its totient is φ = 378534982.

The previous prime is 378534859. The next prime is 378534997. The reversal of 378534983 is 389435873.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 378534983 - 2¹⁰ = 378533959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (378534083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189267491 + 189267492.

It is an arithmetic number, because the mean of its divisors is an integer number (189267492).

Almost surely, 2^378534983 is an apocalyptic number.

378534983 is a deficient number, since it is larger than the sum of its proper divisors (1).

378534983 is an equidigital number, since it uses as much as digits as its factorization.

378534983 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2177280, while the sum is 50.

The square root of 378534983 is about 19455.9755088250. The cubic root of 378534983 is about 723.3836256357.

The spelling of 378534983 in words is "three hundred seventy-eight million, five hundred thirty-four thousand, nine hundred eighty-three".