67571072 has 32 divisors (see below), whose sum is σ = 138964800. Its totient is φ = 32693760.

The previous prime is 67571071. The next prime is 67571083. The reversal of 67571072 is 27017576.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67571071) 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, 4547 + ... + 12482.

It is an arithmetic number, because the mean of its divisors is an integer number (4342650).

Almost surely, 2^67571072 is an apocalyptic number.

67571072 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

67571072 is an abundant number, since it is smaller than the sum of its proper divisors (71393728).

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

67571072 is a wasteful number, since it uses less digits than its factorization.

67571072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17074 (or 17062 counting only the distinct ones).

The product of its (nonzero) digits is 20580, while the sum is 35.

The square root of 67571072 is about 8220.1625288068. The cubic root of 67571072 is about 407.3054953922.

The spelling of 67571072 in words is "sixty-seven million, five hundred seventy-one thousand, seventy-two".