71290485 has 48 divisors (see below), whose sum is σ = 141987456. Its totient is φ = 32413824.

The previous prime is 71290477. The next prime is 71290487. The reversal of 71290485 is 58409217.

It is not a de Polignac number, because 71290485 - 2³ = 71290477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71290487) 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 47 ways as a sum of consecutive naturals, for example, 71007 + ... + 72003.

It is an arithmetic number, because the mean of its divisors is an integer number (2958072).

Almost surely, 2^71290485 is an apocalyptic number.

It is an amenable number.

71290485 is a deficient number, since it is larger than the sum of its proper divisors (70696971).

71290485 is a wasteful number, since it uses less digits than its factorization.

71290485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1242 (or 1239 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 71290485 is about 8443.3692919355. The cubic root of 71290485 is about 414.6457227107.

The spelling of 71290485 in words is "seventy-one million, two hundred ninety thousand, four hundred eighty-five".