378461929 has 2 divisors, whose sum is σ = 378461930. Its totient is φ = 378461928.

The previous prime is 378461899. The next prime is 378461933. The reversal of 378461929 is 929164873.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 230888025 + 147573904 = 15195^2 + 12148^2 .

It is a cyclic number.

It is not a de Polignac number, because 378461929 - 2¹⁷ = 378330857 is a prime.

It is not a weakly prime, because it can be changed into another prime (378461129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189230964 + 189230965.

It is an arithmetic number, because the mean of its divisors is an integer number (189230965).

Almost surely, 2^378461929 is an apocalyptic number.

It is an amenable number.

378461929 is a deficient number, since it is larger than the sum of its proper divisors (1).

378461929 is an equidigital number, since it uses as much as digits as its factorization.

378461929 is an evil number, because the sum of its binary digits is even.

The product of its digits is 653184, while the sum is 49.

The square root of 378461929 is about 19454.0980001644. The cubic root of 378461929 is about 723.3370870332.

The spelling of 378461929 in words is "three hundred seventy-eight million, four hundred sixty-one thousand, nine hundred twenty-nine".