378653 has 8 divisors (see below), whose sum is σ = 427680. Its totient is φ = 332080.

The previous prime is 378629. The next prime is 378661. The reversal of 378653 is 356873.

It is a happy number.

378653 is nontrivially palindromic in base 2.

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 378653 - 2¹² = 374557 is a prime.

It is a Curzon 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 378653.

It is not an unprimeable number, because it can be changed into a prime (378683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 275 + ... + 912.

It is an arithmetic number, because the mean of its divisors is an integer number (53460).

2³⁷⁸⁶⁵³ is an apocalyptic number.

It is an amenable number.

378653 is a deficient number, since it is larger than the sum of its proper divisors (49027).

378653 is a wasteful number, since it uses less digits than its factorization.

378653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1227.

The product of its digits is 15120, while the sum is 32.

The square root of 378653 is about 615.3478690952. The cubic root of 378653 is about 72.3458794993.

The spelling of 378653 in words is "three hundred seventy-eight thousand, six hundred fifty-three".