71775396 has 216 divisors, whose sum is σ = 240510816. Its totient is φ = 18506880.

The previous prime is 71775383. The next prime is 71775397. The reversal of 71775396 is 69357717.

It is a nialpdrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (71775397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 523840 + ... + 523976.

It is an arithmetic number, because the mean of its divisors is an integer number (1113476).

Almost surely, 2^71775396 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 71775396, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120255408).

71775396 is an abundant number, since it is smaller than the sum of its proper divisors (168735420).

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

71775396 is a wasteful number, since it uses less digits than its factorization.

71775396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181 (or 160 counting only the distinct ones).

The product of its digits is 277830, while the sum is 45.

The square root of 71775396 is about 8472.0361189032. The cubic root of 71775396 is about 415.5837259106.

The spelling of 71775396 in words is "seventy-one million, seven hundred seventy-five thousand, three hundred ninety-six".