71298612 has 216 divisors, whose sum is σ = 241375680. Its totient is φ = 17233920.

The previous prime is 71298611. The next prime is 71298613. The reversal of 71298612 is 21689217.

It is an interprime number because it is at equal distance from previous prime (71298611) and next prime (71298613).

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 (71298611) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 801064 + ... + 801152.

It is an arithmetic number, because the mean of its divisors is an integer number (1117480).

Almost surely, 2^71298612 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 71298612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120687840).

71298612 is an abundant number, since it is smaller than the sum of its proper divisors (170077068).

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

71298612 is a wasteful number, since it uses less digits than its factorization.

71298612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151 (or 129 counting only the distinct ones).

The product of its digits is 12096, while the sum is 36.

The square root of 71298612 is about 8443.8505434428. The cubic root of 71298612 is about 414.6614784259.

The spelling of 71298612 in words is "seventy-one million, two hundred ninety-eight thousand, six hundred twelve".