407878807 has 16 divisors (see below), whose sum is σ = 494242560. Its totient is φ = 328595328.

The previous prime is 407878799. The next prime is 407878829. The reversal of 407878807 is 708878704.

It is a cyclic number.

It is not a de Polignac number, because 407878807 - 2³ = 407878799 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (407878837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106044 + ... + 109822.

It is an arithmetic number, because the mean of its divisors is an integer number (30890160).

Almost surely, 2^407878807 is an apocalyptic number.

407878807 is a deficient number, since it is larger than the sum of its proper divisors (86363753).

407878807 is a wasteful number, since it uses less digits than its factorization.

407878807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4710.

The product of its (nonzero) digits is 702464, while the sum is 49.

The square root of 407878807 is about 20196.0096801324. The cubic root of 407878807 is about 741.6125093701.

It can be divided in two parts, 40787 and 8807, that added together give a palindrome (49594).

The spelling of 407878807 in words is "four hundred seven million, eight hundred seventy-eight thousand, eight hundred seven".