71888045 has 8 divisors (see below), whose sum is σ = 88272096. Its totient is φ = 56172816.

The previous prime is 71888027. The next prime is 71888081. The reversal of 71888045 is 54088817.

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

It is a cyclic number.

It is not a de Polignac number, because 71888045 - 2¹⁰ = 71887021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 71887993 and 71888011.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 166967 + ... + 167396.

It is an arithmetic number, because the mean of its divisors is an integer number (11034012).

Almost surely, 2^71888045 is an apocalyptic number.

It is an amenable number.

71888045 is a deficient number, since it is larger than the sum of its proper divisors (16384051).

71888045 is a wasteful number, since it uses less digits than its factorization.

71888045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334411.

The product of its (nonzero) digits is 71680, while the sum is 41.

The square root of 71888045 is about 8478.6817961285. The cubic root of 71888045 is about 415.8010270264.

The spelling of 71888045 in words is "seventy-one million, eight hundred eighty-eight thousand, forty-five".