478537 has 4 divisors (see below), whose sum is σ = 487620. Its totient is φ = 469456.

The previous prime is 478531. The next prime is 478571. The reversal of 478537 is 735874.

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

It can be written as a sum of positive squares in 2 ways, for example, as 436921 + 41616 = 661^2 + 204^2 .

It is a cyclic number.

It is not a de Polignac number, because 478537 - 2¹⁵ = 445769 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478531) 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, 4462 + ... + 4567.

It is an arithmetic number, because the mean of its divisors is an integer number (121905).

2⁴⁷⁸⁵³⁷ is an apocalyptic number.

It is an amenable number.

478537 is a deficient number, since it is larger than the sum of its proper divisors (9083).

478537 is an equidigital number, since it uses as much as digits as its factorization.

478537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9082.

The product of its digits is 23520, while the sum is 34.

The square root of 478537 is about 691.7636879744. The cubic root of 478537 is about 78.2177239322.

It can be divided in two parts, 47853 and 7, that multiplied together give a triangular number (334971 = T₈₁₈).

The spelling of 478537 in words is "four hundred seventy-eight thousand, five hundred thirty-seven".