378557 has 8 divisors (see below), whose sum is σ = 401280. Its totient is φ = 356400.

The previous prime is 378551. The next prime is 378559. The reversal of 378557 is 755873.

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

It is a cyclic number.

It is not a de Polignac number, because 378557 - 2⁶ = 378493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 378557.

It is not an unprimeable number, because it can be changed into a prime (378551) 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, 2432 + ... + 2582.

It is an arithmetic number, because the mean of its divisors is an integer number (50160).

2³⁷⁸⁵⁵⁷ is an apocalyptic number.

It is an amenable number.

378557 is a deficient number, since it is larger than the sum of its proper divisors (22723).

378557 is a wasteful number, since it uses less digits than its factorization.

378557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283.

The product of its digits is 29400, while the sum is 35.

The square root of 378557 is about 615.2698594926. The cubic root of 378557 is about 72.3397650256.

The spelling of 378557 in words is "three hundred seventy-eight thousand, five hundred fifty-seven".