71146628 has 36 divisors (see below), whose sum is σ = 149840460. Its totient is φ = 29437632.

The previous prime is 71146627. The next prime is 71146631. The reversal of 71146628 is 82664117.

It can be written as a sum of positive squares in 2 ways, for example, as 54434884 + 16711744 = 7378^2 + 4088^2 .

It is not an unprimeable number, because it can be changed into a prime (71146627) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 575 + ... + 11942.

It is an arithmetic number, because the mean of its divisors is an integer number (4162235).

Almost surely, 2^71146628 is an apocalyptic number.

It is an amenable number.

71146628 is an abundant number, since it is smaller than the sum of its proper divisors (78693832).

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

71146628 is a wasteful number, since it uses less digits than its factorization.

71146628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12564 (or 12555 counting only the distinct ones).

The product of its digits is 16128, while the sum is 35.

The square root of 71146628 is about 8434.8460566865. The cubic root of 71146628 is about 414.3666305002.

The spelling of 71146628 in words is "seventy-one million, one hundred forty-six thousand, six hundred twenty-eight".