378407 has 2 divisors, whose sum is σ = 378408. Its totient is φ = 378406.

The previous prime is 378401. The next prime is 378439. The reversal of 378407 is 704873.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 378407 - 2⁸ = 378151 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 378407.

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 378407.

It is not a weakly prime, because it can be changed into another prime (378401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189203 + 189204.

It is an arithmetic number, because the mean of its divisors is an integer number (189204).

2³⁷⁸⁴⁰⁷ is an apocalyptic number.

378407 is a deficient number, since it is larger than the sum of its proper divisors (1).

378407 is an equidigital number, since it uses as much as digits as its factorization.

378407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4704, while the sum is 29.

The square root of 378407 is about 615.1479496837. The cubic root of 378407 is about 72.3302090906.

The spelling of 378407 in words is "three hundred seventy-eight thousand, four hundred seven".