378370933 has 2 divisors, whose sum is σ = 378370934. Its totient is φ = 378370932.

The previous prime is 378370913. The next prime is 378370943. The reversal of 378370933 is 339073873.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 273472369 + 104898564 = 16537^2 + 10242^2 .

It is a cyclic number.

It is not a de Polignac number, because 378370933 - 2⁵ = 378370901 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 378370933.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (378370913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189185466 + 189185467.

It is an arithmetic number, because the mean of its divisors is an integer number (189185467).

Almost surely, 2^378370933 is an apocalyptic number.

It is an amenable number.

378370933 is a deficient number, since it is larger than the sum of its proper divisors (1).

378370933 is an equidigital number, since it uses as much as digits as its factorization.

378370933 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 285768, while the sum is 43.

The square root of 378370933 is about 19451.7591235343. The cubic root of 378370933 is about 723.2791102131.

The spelling of 378370933 in words is "three hundred seventy-eight million, three hundred seventy thousand, nine hundred thirty-three".