71889092 has 12 divisors (see below), whose sum is σ = 137242896. Its totient is φ = 32676840.

The previous prime is 71889091. The next prime is 71889101. The reversal of 71889092 is 29098817.

It is a Harshad number since it is a multiple of its sum of digits (44), and also a Moran number because the ratio is a prime number: 1633843 = 71889092 / (7 + 1 + 8 + 8 + 9 + 0 + 9 + 2).

It is not an unprimeable number, because it can be changed into a prime (71889091) 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, 816878 + ... + 816965.

It is an arithmetic number, because the mean of its divisors is an integer number (11436908).

Almost surely, 2^71889092 is an apocalyptic number.

It is an amenable number.

71889092 is a deficient number, since it is larger than the sum of its proper divisors (65353804).

71889092 is a wasteful number, since it uses less digits than its factorization.

71889092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1633858 (or 1633856 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 44.

The square root of 71889092 is about 8478.7435389921. The cubic root of 71889092 is about 415.8030456354.

The spelling of 71889092 in words is "seventy-one million, eight hundred eighty-nine thousand, ninety-two".