71272700 has 36 divisors (see below), whose sum is σ = 156130632. Its totient is φ = 28238400.

The previous prime is 71272697. The next prime is 71272703. The reversal of 71272700 is 727217.

It is an interprime number because it is at equal distance from previous prime (71272697) and next prime (71272703).

It is a self number, because there is not a number n which added to its sum of digits gives 71272700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71272703) 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, 7370 + ... + 14030.

It is an arithmetic number, because the mean of its divisors is an integer number (4336962).

Almost surely, 2^71272700 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 71272700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78065316).

71272700 is an abundant number, since it is smaller than the sum of its proper divisors (84857932).

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

71272700 is a wasteful number, since it uses less digits than its factorization.

71272700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6782 (or 6775 counting only the distinct ones).

The product of its (nonzero) digits is 1372, while the sum is 26.

The square root of 71272700 is about 8442.3160329379. The cubic root of 71272700 is about 414.6112389713.

Adding to 71272700 its reverse (727217), we get a palindrome (71999917).

The spelling of 71272700 in words is "seventy-one million, two hundred seventy-two thousand, seven hundred".