375478393 has 2 divisors, whose sum is σ = 375478394. Its totient is φ = 375478392.

The previous prime is 375478391. The next prime is 375478423. The reversal of 375478393 is 393874573.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 293539689 + 81938704 = 17133^2 + 9052^2 .

It is a cyclic number.

It is not a de Polignac number, because 375478393 - 2¹ = 375478391 is a prime.

Together with 375478391, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (375478391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 187739196 + 187739197.

It is an arithmetic number, because the mean of its divisors is an integer number (187739197).

Almost surely, 2^375478393 is an apocalyptic number.

It is an amenable number.

375478393 is a deficient number, since it is larger than the sum of its proper divisors (1).

375478393 is an equidigital number, since it uses as much as digits as its factorization.

375478393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1905120, while the sum is 49.

The square root of 375478393 is about 19377.2648482700. The cubic root of 375478393 is about 721.4313046685.

The spelling of 375478393 in words is "three hundred seventy-five million, four hundred seventy-eight thousand, three hundred ninety-three".