378747077 has 2 divisors, whose sum is σ = 378747078. Its totient is φ = 378747076.

The previous prime is 378747043. The next prime is 378747143. The reversal of 378747077 is 770747873.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 377874721 + 872356 = 19439^2 + 934^2 .

It is a cyclic number.

It is not a de Polignac number, because 378747077 - 2⁶ = 378747013 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (378717077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189373538 + 189373539.

It is an arithmetic number, because the mean of its divisors is an integer number (189373539).

Almost surely, 2^378747077 is an apocalyptic number.

It is an amenable number.

378747077 is a deficient number, since it is larger than the sum of its proper divisors (1).

378747077 is an equidigital number, since it uses as much as digits as its factorization.

378747077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1613472, while the sum is 50.

The square root of 378747077 is about 19461.4253588991. The cubic root of 378747077 is about 723.5187048998.

The spelling of 378747077 in words is "three hundred seventy-eight million, seven hundred forty-seven thousand, seventy-seven".