71272074 has 8 divisors (see below), whose sum is σ = 142544160. Its totient is φ = 23757356.

The previous prime is 71272073. The next prime is 71272079. The reversal of 71272074 is 47027217.

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

71272074 is an admirable number.

It is a super-2 number, since 2×71272074² = 10159417064522952, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (71272073) by changing a digit.

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, 5939334 + ... + 5939345.

It is an arithmetic number, because the mean of its divisors is an integer number (17818020).

Almost surely, 2^71272074 is an apocalyptic number.

71272074 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.

71272074 is a wasteful number, since it uses less digits than its factorization.

71272074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11878684.

The product of its (nonzero) digits is 5488, while the sum is 30.

The square root of 71272074 is about 8442.2789577223. The cubic root of 71272074 is about 414.6100251012.

The spelling of 71272074 in words is "seventy-one million, two hundred seventy-two thousand, seventy-four".