71872955 has 24 divisors (see below), whose sum is σ = 109453680. Its totient is φ = 44802240.

The previous prime is 71872951. The next prime is 71872961. The reversal of 71872955 is 55927817.

It is not a de Polignac number, because 71872955 - 2² = 71872951 is a prime.

It is not an unprimeable number, because it can be changed into a prime (71872951) 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 23 ways as a sum of consecutive naturals, for example, 10640 + ... + 16029.

It is an arithmetic number, because the mean of its divisors is an integer number (4560570).

Almost surely, 2^71872955 is an apocalyptic number.

71872955 is a deficient number, since it is larger than the sum of its proper divisors (37580725).

71872955 is a wasteful number, since it uses less digits than its factorization.

71872955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26699 (or 26692 counting only the distinct ones).

The product of its digits is 176400, while the sum is 44.

The square root of 71872955 is about 8477.7918705286. The cubic root of 71872955 is about 415.7719314303.

It can be divided in two parts, 71872 and 955, that added together give a palindrome (72827).

The spelling of 71872955 in words is "seventy-one million, eight hundred seventy-two thousand, nine hundred fifty-five".