81734360 has 32 divisors (see below), whose sum is σ = 184401360. Its totient is φ = 32605056.

The previous prime is 81734353. The next prime is 81734399. The reversal of 81734360 is 6343718.

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, 13307 + ... + 18453.

Almost surely, 2^81734360 is an apocalyptic number.

It is an amenable number.

81734360 is an abundant number, since it is smaller than the sum of its proper divisors (102667000).

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

81734360 is a wasteful number, since it uses less digits than its factorization.

81734360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5555 (or 5551 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 81734360 is about 9040.7057246655. The cubic root of 81734360 is about 433.9785077169.

The spelling of 81734360 in words is "eighty-one million, seven hundred thirty-four thousand, three hundred sixty".