378586231 has 2 divisors, whose sum is σ = 378586232. Its totient is φ = 378586230.

The previous prime is 378586207. The next prime is 378586283. The reversal of 378586231 is 132685873.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 378586231 - 2⁹ = 378585719 is a prime.

It is a super-2 number, since 2×378586231² = 286655068605570722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (378586531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189293115 + 189293116.

It is an arithmetic number, because the mean of its divisors is an integer number (189293116).

Almost surely, 2^378586231 is an apocalyptic number.

378586231 is a deficient number, since it is larger than the sum of its proper divisors (1).

378586231 is an equidigital number, since it uses as much as digits as its factorization.

378586231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 241920, while the sum is 43.

The square root of 378586231 is about 19457.2924889359. The cubic root of 378586231 is about 723.4162692863.

The spelling of 378586231 in words is "three hundred seventy-eight million, five hundred eighty-six thousand, two hundred thirty-one".