71672064 has 36 divisors (see below), whose sum is σ = 190754256. Its totient is φ = 23890432.

The previous prime is 71672063. The next prime is 71672087. The reversal of 71672064 is 46027617.

It is not an unprimeable number, because it can be changed into a prime (71672063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45894 + ... + 47429.

Almost surely, 2^71672064 is an apocalyptic number.

It is an amenable number.

71672064 is an abundant number, since it is smaller than the sum of its proper divisors (119082192).

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

71672064 is an equidigital number, since it uses as much as digits as its factorization.

71672064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93342 (or 93328 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 71672064 is about 8465.9355064872. The cubic root of 71672064 is about 415.3841973616.

The spelling of 71672064 in words is "seventy-one million, six hundred seventy-two thousand, sixty-four".