378883317 has 4 divisors (see below), whose sum is σ = 505177760. Its totient is φ = 252588876.

The previous prime is 378883283. The next prime is 378883327. The reversal of 378883317 is 713388873.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 378883317 - 2⁷ = 378883189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378883327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63147217 + ... + 63147222.

It is an arithmetic number, because the mean of its divisors is an integer number (126294440).

Almost surely, 2^378883317 is an apocalyptic number.

It is an amenable number.

378883317 is a deficient number, since it is larger than the sum of its proper divisors (126294443).

378883317 is a wasteful number, since it uses less digits than its factorization.

378883317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126294442.

The product of its digits is 677376, while the sum is 48.

The square root of 378883317 is about 19464.9253016805. The cubic root of 378883317 is about 723.6054473703.

The spelling of 378883317 in words is "three hundred seventy-eight million, eight hundred eighty-three thousand, three hundred seventeen".