478670537 has 2 divisors, whose sum is σ = 478670538. Its totient is φ = 478670536.

The previous prime is 478670501. The next prime is 478670551. The reversal of 478670537 is 735076874.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 439782841 + 38887696 = 20971^2 + 6236^2 .

It is a cyclic number.

It is not a de Polignac number, because 478670537 - 2¹⁴ = 478654153 is a prime.

It is a Chen prime.

It is equal to p_25289687 and since 478670537 and 25289687 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 478670491 and 478670500.

It is not a weakly prime, because it can be changed into another prime (478670567) 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 as a sum of consecutive naturals, namely, 239335268 + 239335269.

It is an arithmetic number, because the mean of its divisors is an integer number (239335269).

Almost surely, 2^478670537 is an apocalyptic number.

It is an amenable number.

478670537 is a deficient number, since it is larger than the sum of its proper divisors (1).

478670537 is an equidigital number, since it uses as much as digits as its factorization.

478670537 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 987840, while the sum is 47.

The square root of 478670537 is about 21878.5405591872. The cubic root of 478670537 is about 782.2499887563.

The spelling of 478670537 in words is "four hundred seventy-eight million, six hundred seventy thousand, five hundred thirty-seven".