478768629 has 4 divisors (see below), whose sum is σ = 638358176. Its totient is φ = 319179084.

The previous prime is 478768607. The next prime is 478768679. The reversal of 478768629 is 926867874.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 478768629 - 2⁵ = 478768597 is a prime.

It is a super-2 number, since 2×478768629² = 458438800229079282, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478768679) 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 3 ways as a sum of consecutive naturals, for example, 79794769 + ... + 79794774.

It is an arithmetic number, because the mean of its divisors is an integer number (159589544).

Almost surely, 2^478768629 is an apocalyptic number.

It is an amenable number.

478768629 is a deficient number, since it is larger than the sum of its proper divisors (159589547).

478768629 is a wasteful number, since it uses less digits than its factorization.

478768629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159589546.

The product of its digits is 8128512, while the sum is 57.

The square root of 478768629 is about 21880.7821843736. The cubic root of 478768629 is about 782.3034195394.

The spelling of 478768629 in words is "four hundred seventy-eight million, seven hundred sixty-eight thousand, six hundred twenty-nine".