71263506 has 8 divisors (see below), whose sum is σ = 142527024. Its totient is φ = 23754500.

The previous prime is 71263487. The next prime is 71263519. The reversal of 71263506 is 60536217.

It is a sphenic number, since it is the product of 3 distinct primes.

71263506 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5938620 + ... + 5938631.

It is an arithmetic number, because the mean of its divisors is an integer number (17815878).

Almost surely, 2^71263506 is an apocalyptic number.

71263506 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71263506 is a wasteful number, since it uses less digits than its factorization.

71263506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11877256.

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 71263506 is about 8441.7714965521. The cubic root of 71263506 is about 414.5934102671.

The spelling of 71263506 in words is "seventy-one million, two hundred sixty-three thousand, five hundred six".