71023316 has 48 divisors (see below), whose sum is σ = 156737280. Its totient is φ = 27406080.

The previous prime is 71023307. The next prime is 71023321. The reversal of 71023316 is 61332017.

It is a happy number.

It is a super-2 number, since 2×71023316² = 10088622831271712, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 71023291 and 71023300.

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, 12545 + ... + 17303.

It is an arithmetic number, because the mean of its divisors is an integer number (3265360).

Almost surely, 2^71023316 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 71023316, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78368640).

71023316 is an abundant number, since it is smaller than the sum of its proper divisors (85713964).

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

71023316 is a wasteful number, since it uses less digits than its factorization.

71023316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4824 (or 4822 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 71023316 is about 8427.5332096646. The cubic root of 71023316 is about 414.1270973555.

The spelling of 71023316 in words is "seventy-one million, twenty-three thousand, three hundred sixteen".