478321007 has 4 divisors (see below), whose sum is σ = 480428376. Its totient is φ = 476213640.

The previous prime is 478321003. The next prime is 478321031. The reversal of 478321007 is 700123874.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 478321007 - 2² = 478321003 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478321003) 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, 1053344 + ... + 1053797.

It is an arithmetic number, because the mean of its divisors is an integer number (120107094).

Almost surely, 2^478321007 is an apocalyptic number.

478321007 is a deficient number, since it is larger than the sum of its proper divisors (2107369).

478321007 is a wasteful number, since it uses less digits than its factorization.

478321007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2107368.

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 478321007 is about 21870.5511361740. The cubic root of 478321007 is about 782.0595401451.

The spelling of 478321007 in words is "four hundred seventy-eight million, three hundred twenty-one thousand, seven".