378851 has 12 divisors (see below), whose sum is σ = 434112. Its totient is φ = 330000.

The previous prime is 378823. The next prime is 378869. The reversal of 378851 is 158873.

It is not a de Polignac number, because 378851 - 2¹⁰ = 377827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (378821) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3701 + ... + 3801.

It is an arithmetic number, because the mean of its divisors is an integer number (36176).

2³⁷⁸⁸⁵¹ is an apocalyptic number.

378851 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

378851 is a deficient number, since it is larger than the sum of its proper divisors (55261).

378851 is a wasteful number, since it uses less digits than its factorization.

378851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154 (or 143 counting only the distinct ones).

The product of its digits is 6720, while the sum is 32.

The square root of 378851 is about 615.5087326757. The cubic root of 378851 is about 72.3584873383.

It can be divided in two parts, 37 and 8851, that added together give a palindrome (8888).

The spelling of 378851 in words is "three hundred seventy-eight thousand, eight hundred fifty-one".