71163372 has 48 divisors (see below), whose sum is σ = 194406912. Its totient is φ = 19835520.

The previous prime is 71163347. The next prime is 71163401. The reversal of 71163372 is 27336117.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6888 + ... + 13775.

It is an arithmetic number, because the mean of its divisors is an integer number (4050144).

Almost surely, 2^71163372 is an apocalyptic number.

71163372 is the 6888-th pentagonal number.

It is an amenable number.

71163372 is an abundant number, since it is smaller than the sum of its proper divisors (123243540).

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

71163372 is a wasteful number, since it uses less digits than its factorization.

71163372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20718 (or 20716 counting only the distinct ones).

The product of its digits is 5292, while the sum is 30.

The square root of 71163372 is about 8435.8385475304. The cubic root of 71163372 is about 414.3991343159.

Adding to 71163372 its reverse (27336117), we get a palindrome (98499489).

The spelling of 71163372 in words is "seventy-one million, one hundred sixty-three thousand, three hundred seventy-two".