71727952 has 20 divisors (see below), whose sum is σ = 141330240. Its totient is φ = 35255648.

The previous prime is 71727937. The next prime is 71727959. The reversal of 71727952 is 25972717.

It is a happy number.

It is a super-2 number, since 2×71727952² = 10289798196228608, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71727959) 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, 37048 + ... + 38935.

It is an arithmetic number, because the mean of its divisors is an integer number (7066512).

Almost surely, 2^71727952 is an apocalyptic number.

It is an amenable number.

71727952 is a deficient number, since it is larger than the sum of its proper divisors (69602288).

71727952 is a wasteful number, since it uses less digits than its factorization.

71727952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76050 (or 76044 counting only the distinct ones).

The product of its digits is 61740, while the sum is 40.

The square root of 71727952 is about 8469.2356207630. The cubic root of 71727952 is about 415.4921378859.

The spelling of 71727952 in words is "seventy-one million, seven hundred twenty-seven thousand, nine hundred fifty-two".