71872853 has 4 divisors (see below), whose sum is σ = 77401548. Its totient is φ = 66344160.

The previous prime is 71872837. The next prime is 71872883. The reversal of 71872853 is 35827817.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 35827817 = 839 ⋅42703.

It can be written as a sum of positive squares in 2 ways, for example, as 43335889 + 28536964 = 6583^2 + 5342^2 .

It is a cyclic number.

It is not a de Polignac number, because 71872853 - 2⁴ = 71872837 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 71872853.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71872813) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2764328 + ... + 2764353.

It is an arithmetic number, because the mean of its divisors is an integer number (19350387).

Almost surely, 2^71872853 is an apocalyptic number.

It is an amenable number.

71872853 is a deficient number, since it is larger than the sum of its proper divisors (5528695).

71872853 is a wasteful number, since it uses less digits than its factorization.

71872853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5528694.

The product of its digits is 94080, while the sum is 41.

The square root of 71872853 is about 8477.7858548090. The cubic root of 71872853 is about 415.7717347464.

The spelling of 71872853 in words is "seventy-one million, eight hundred seventy-two thousand, eight hundred fifty-three".