407878 has 8 divisors (see below), whose sum is σ = 617760. Its totient is φ = 201960.

The previous prime is 407861. The next prime is 407879. The reversal of 407878 is 878704.

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

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (407879) 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, 718 + ... + 1153.

It is an arithmetic number, because the mean of its divisors is an integer number (77220).

2⁴⁰⁷⁸⁷⁸ is an apocalyptic number.

407878 is a deficient number, since it is larger than the sum of its proper divisors (209882).

407878 is a wasteful number, since it uses less digits than its factorization.

407878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1982.

The product of its (nonzero) digits is 12544, while the sum is 34.

The square root of 407878 is about 638.6532705624. The cubic root of 407878 is about 74.1612020269.

The spelling of 407878 in words is "four hundred seven thousand, eight hundred seventy-eight".