71764938 has 96 divisors (see below), whose sum is σ = 193290240. Its totient is φ = 18779040.

The previous prime is 71764921. The next prime is 71764949. The reversal of 71764938 is 83946717.

It is a super-2 number, since 2×71764938² = 10300412652287688, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 71764893 and 71764902.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 73731 + ... + 74697.

It is an arithmetic number, because the mean of its divisors is an integer number (2013440).

Almost surely, 2^71764938 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71764938, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96645120).

71764938 is an abundant number, since it is smaller than the sum of its proper divisors (121525302).

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

71764938 is a wasteful number, since it uses less digits than its factorization.

71764938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1032 (or 1029 counting only the distinct ones).

The product of its digits is 254016, while the sum is 45.

The square root of 71764938 is about 8471.4188894187. The cubic root of 71764938 is about 415.5635407871.

The spelling of 71764938 in words is "seventy-one million, seven hundred sixty-four thousand, nine hundred thirty-eight".