71406885 has 32 divisors (see below), whose sum is σ = 131974272. Its totient is φ = 32583680.

The previous prime is 71406869. The next prime is 71406887. The reversal of 71406885 is 58860417.

It is not a de Polignac number, because 71406885 - 2⁴ = 71406869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71406887) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9924 + ... + 15533.

It is an arithmetic number, because the mean of its divisors is an integer number (4124196).

Almost surely, 2^71406885 is an apocalyptic number.

It is an amenable number.

71406885 is a deficient number, since it is larger than the sum of its proper divisors (60567387).

71406885 is a wasteful number, since it uses less digits than its factorization.

71406885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25493.

The product of its (nonzero) digits is 53760, while the sum is 39.

The square root of 71406885 is about 8450.2594634721. The cubic root of 71406885 is about 414.8712718272.

The spelling of 71406885 in words is "seventy-one million, four hundred six thousand, eight hundred eighty-five".