71849436 has 24 divisors (see below), whose sum is σ = 167846784. Its totient is φ = 23921520.

The previous prime is 71849423. The next prime is 71849543. The reversal of 71849436 is 63494817.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8751 + ... + 14841.

It is an arithmetic number, because the mean of its divisors is an integer number (6993616).

Almost surely, 2^71849436 is an apocalyptic number.

It is an amenable number.

71849436 is an abundant number, since it is smaller than the sum of its proper divisors (95997348).

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

71849436 is a wasteful number, since it uses less digits than its factorization.

71849436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7081 (or 7079 counting only the distinct ones).

The product of its digits is 145152, while the sum is 42.

The square root of 71849436 is about 8476.4046623554. The cubic root of 71849436 is about 415.7265754413.

The spelling of 71849436 in words is "seventy-one million, eight hundred forty-nine thousand, four hundred thirty-six".