81743096 has 16 divisors (see below), whose sum is σ = 153549000. Its totient is φ = 40796704.

The previous prime is 81743071. The next prime is 81743147. The reversal of 81743096 is 69034718.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4571 + ... + 13578.

Almost surely, 2^81743096 is an apocalyptic number.

It is an amenable number.

81743096 is a deficient number, since it is larger than the sum of its proper divisors (71805904).

81743096 is a wasteful number, since it uses less digits than its factorization.

81743096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18718 (or 18714 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 81743096 is about 9041.1888598790. The cubic root of 81743096 is about 433.9939687836.

The spelling of 81743096 in words is "eighty-one million, seven hundred forty-three thousand, ninety-six".