378897239 has 8 divisors (see below), whose sum is σ = 451852800. Its totient is φ = 310648536.

The previous prime is 378897227. The next prime is 378897269. The reversal of 378897239 is 932798873.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-378897239 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378897269) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1176539 + ... + 1176860.

It is an arithmetic number, because the mean of its divisors is an integer number (56481600).

Almost surely, 2^378897239 is an apocalyptic number.

378897239 is a deficient number, since it is larger than the sum of its proper divisors (72955561).

378897239 is a wasteful number, since it uses less digits than its factorization.

378897239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2353429.

The product of its digits is 4572288, while the sum is 56.

The square root of 378897239 is about 19465.2829160020. The cubic root of 378897239 is about 723.6143101795.

The spelling of 378897239 in words is "three hundred seventy-eight million, eight hundred ninety-seven thousand, two hundred thirty-nine".