71854650 has 72 divisors (see below), whose sum is σ = 220637664. Its totient is φ = 16423200.

The previous prime is 71854639. The next prime is 71854667. The reversal of 71854650 is 5645817.

It is an unprimeable number.

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 35 ways as a sum of consecutive naturals, for example, 8256 + ... + 14555.

It is an arithmetic number, because the mean of its divisors is an integer number (3064412).

Almost surely, 2^71854650 is an apocalyptic number.

71854650 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

71854650 is an abundant number, since it is smaller than the sum of its proper divisors (148783014).

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

71854650 is a wasteful number, since it uses less digits than its factorization.

71854650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22836 (or 22828 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

The square root of 71854650 is about 8476.7122164198. The cubic root of 71854650 is about 415.7366314049.

The spelling of 71854650 in words is "seventy-one million, eight hundred fifty-four thousand, six hundred fifty".