71622628 has 48 divisors (see below), whose sum is σ = 164505600. Its totient is φ = 26434080.

The previous prime is 71622623. The next prime is 71622643. The reversal of 71622628 is 82622617.

It is a junction number, because it is equal to n+sod(n) for n = 71622593 and 71622602.

It is not an unprimeable number, because it can be changed into a prime (71622623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 268 + ... + 11971.

It is an arithmetic number, because the mean of its divisors is an integer number (3427200).

Almost surely, 2^71622628 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 71622628, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82252800).

71622628 is an abundant number, since it is smaller than the sum of its proper divisors (92882972).

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

71622628 is a wasteful number, since it uses less digits than its factorization.

71622628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12280 (or 12278 counting only the distinct ones).

The product of its digits is 16128, while the sum is 34.

The square root of 71622628 is about 8463.0153018886. The cubic root of 71622628 is about 415.2886712706.

The spelling of 71622628 in words is "seventy-one million, six hundred twenty-two thousand, six hundred twenty-eight".