817480537 has 4 divisors (see below), whose sum is σ = 817963956. Its totient is φ = 816997120.

The previous prime is 817480523. The next prime is 817480561. The reversal of 817480537 is 735084718.

817480537 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 735084718 = 2 ⋅367542359.

It can be written as a sum of positive squares in 2 ways, for example, as 746600976 + 70879561 = 27324^2 + 8419^2 .

It is a cyclic number.

It is not a de Polignac number, because 817480537 - 2¹⁹ = 816956249 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 817480493 and 817480502.

It is not an unprimeable number, because it can be changed into a prime (817480597) 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, 239164 + ... + 242557.

It is an arithmetic number, because the mean of its divisors is an integer number (204490989).

Almost surely, 2^817480537 is an apocalyptic number.

It is an amenable number.

817480537 is a deficient number, since it is larger than the sum of its proper divisors (483419).

817480537 is a wasteful number, since it uses less digits than its factorization.

817480537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483418.

The product of its (nonzero) digits is 188160, while the sum is 43.

The square root of 817480537 is about 28591.6165510102. The cubic root of 817480537 is about 935.0305639775.

The spelling of 817480537 in words is "eight hundred seventeen million, four hundred eighty thousand, five hundred thirty-seven".