71067380 has 48 divisors (see below), whose sum is σ = 154614096. Its totient is φ = 27417600.

The previous prime is 71067377. The next prime is 71067421. The reversal of 71067380 is 8376017.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 10942864 + 60124516 = 3308^2 + 7754^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101030 + ... + 101730.

It is an arithmetic number, because the mean of its divisors is an integer number (3221127).

Almost surely, 2^71067380 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 71067380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77307048).

71067380 is an abundant number, since it is smaller than the sum of its proper divisors (83546716).

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

71067380 is a wasteful number, since it uses less digits than its factorization.

71067380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 884 (or 882 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 32.

The square root of 71067380 is about 8430.1470924296. The cubic root of 71067380 is about 414.2127233392.

The spelling of 71067380 in words is "seventy-one million, sixty-seven thousand, three hundred eighty".