71474772 has 24 divisors (see below), whose sum is σ = 170654176. Its totient is φ = 23270688.

The previous prime is 71474759. The next prime is 71474801. The reversal of 71474772 is 27747417.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 71474772.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 68743 + ... + 69774.

Almost surely, 2^71474772 is an apocalyptic number.

It is an amenable number.

71474772 is an abundant number, since it is smaller than the sum of its proper divisors (99179404).

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

71474772 is a wasteful number, since it uses less digits than its factorization.

71474772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138567 (or 138565 counting only the distinct ones).

The product of its digits is 76832, while the sum is 39.

The square root of 71474772 is about 8454.2753681200. The cubic root of 71474772 is about 415.0027038097.

The spelling of 71474772 in words is "seventy-one million, four hundred seventy-four thousand, seven hundred seventy-two".