71478285 has 32 divisors (see below), whose sum is σ = 127474560. Its totient is φ = 33988608.

The previous prime is 71478283. The next prime is 71478287. The reversal of 71478285 is 58287417.

It is an interprime number because it is at equal distance from previous prime (71478283) and next prime (71478287).

It is not a de Polignac number, because 71478285 - 2¹ = 71478283 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71478283) 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, 2532 + ... + 12221.

It is an arithmetic number, because the mean of its divisors is an integer number (3983580).

Almost surely, 2^71478285 is an apocalyptic number.

It is an amenable number.

71478285 is a deficient number, since it is larger than the sum of its proper divisors (55996275).

71478285 is a wasteful number, since it uses less digits than its factorization.

71478285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14797.

The product of its digits is 125440, while the sum is 42.

The square root of 71478285 is about 8454.4831302688. The cubic root of 71478285 is about 415.0095028549.

The spelling of 71478285 in words is "seventy-one million, four hundred seventy-eight thousand, two hundred eighty-five".