71486064 has 100 divisors (see below), whose sum is σ = 222869416. Its totient is φ = 21990528.

The previous prime is 71486039. The next prime is 71486069. The reversal of 71486064 is 46068417.

71486064 is a `hidden beast` number, since 7 + 1 + 48 + 606 + 4 = 666.

It is a super-2 number, since 2×71486064² = 10220514692424192, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71486069) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 14727 + ... + 18969.

Almost surely, 2^71486064 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71486064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111434708).

71486064 is an abundant number, since it is smaller than the sum of its proper divisors (151383352).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71486064 is a wasteful number, since it uses less digits than its factorization.

71486064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4276 (or 4261 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 71486064 is about 8454.9431695311. The cubic root of 71486064 is about 415.0245575055.

The spelling of 71486064 in words is "seventy-one million, four hundred eighty-six thousand, sixty-four".