478973629 has 2 divisors, whose sum is σ = 478973630. Its totient is φ = 478973628.

The previous prime is 478973609. The next prime is 478973639. The reversal of 478973629 is 926379874.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 332515225 + 146458404 = 18235^2 + 12102^2 .

It is a cyclic number.

It is not a de Polignac number, because 478973629 - 2⁷ = 478973501 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 478973629.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (478973609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239486814 + 239486815.

It is an arithmetic number, because the mean of its divisors is an integer number (239486815).

Almost surely, 2^478973629 is an apocalyptic number.

It is an amenable number.

478973629 is a deficient number, since it is larger than the sum of its proper divisors (1).

478973629 is an equidigital number, since it uses as much as digits as its factorization.

478973629 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4572288, while the sum is 55.

The square root of 478973629 is about 21885.4661590746. The cubic root of 478973629 is about 782.4150596284.

The spelling of 478973629 in words is "four hundred seventy-eight million, nine hundred seventy-three thousand, six hundred twenty-nine".