71372808 has 48 divisors (see below), whose sum is σ = 208173420. Its totient is φ = 21960576.

The previous prime is 71372803. The next prime is 71372827. The reversal of 71372808 is 80827317.

It can be written as a sum of positive squares in 2 ways, for example, as 64931364 + 6441444 = 8058^2 + 2538^2 .

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

It is not an unprimeable number, because it can be changed into a prime (71372801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37191 + ... + 39062.

Almost surely, 2^71372808 is an apocalyptic number.

71372808 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

It is an amenable number.

71372808 is an abundant number, since it is smaller than the sum of its proper divisors (136800612).

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

71372808 is a wasteful number, since it uses less digits than its factorization.

71372808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76278 (or 76271 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 36.

The square root of 71372808 is about 8448.2428942355. The cubic root of 71372808 is about 414.8052659705.

The spelling of 71372808 in words is "seventy-one million, three hundred seventy-two thousand, eight hundred eight".