71504748 has 48 divisors (see below), whose sum is σ = 211868160. Its totient is φ = 20429712.

The previous prime is 71504711. The next prime is 71504767. The reversal of 71504748 is 84740517.

It is a super-2 number, since 2×71504748² = 10225857973087008, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46536 + ... + 48047.

It is an arithmetic number, because the mean of its divisors is an integer number (4413920).

Almost surely, 2^71504748 is an apocalyptic number.

It is an amenable number.

71504748 is an abundant number, since it is smaller than the sum of its proper divisors (140363412).

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

71504748 is a wasteful number, since it uses less digits than its factorization.

71504748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94603 (or 94595 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 36.

The square root of 71504748 is about 8456.0480131087. The cubic root of 71504748 is about 415.0607120739.

The spelling of 71504748 in words is "seventy-one million, five hundred four thousand, seven hundred forty-eight".