378512297 has 2 divisors, whose sum is σ = 378512298. Its totient is φ = 378512296.

The previous prime is 378512269. The next prime is 378512341. The reversal of 378512297 is 792215873.

It is an a-pointer prime, because the next prime (378512341) can be obtained adding 378512297 to its sum of digits (44).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 367910761 + 10601536 = 19181^2 + 3256^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-378512297 is a prime.

It is not a weakly prime, because it can be changed into another prime (378515297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189256148 + 189256149.

It is an arithmetic number, because the mean of its divisors is an integer number (189256149).

Almost surely, 2^378512297 is an apocalyptic number.

It is an amenable number.

378512297 is a deficient number, since it is larger than the sum of its proper divisors (1).

378512297 is an equidigital number, since it uses as much as digits as its factorization.

378512297 is an evil number, because the sum of its binary digits is even.

The product of its digits is 211680, while the sum is 44.

The square root of 378512297 is about 19455.3924915433. The cubic root of 378512297 is about 723.3691742996.

The spelling of 378512297 in words is "three hundred seventy-eight million, five hundred twelve thousand, two hundred ninety-seven".