81707483 has 8 divisors (see below), whose sum is σ = 95992176. Its totient is φ = 68565600.

The previous prime is 81707453. The next prime is 81707489. The reversal of 81707483 is 38470718.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 81707483 - 2⁶ = 81707419 is a prime.

It is a super-2 number, since 2×81707483² = 13352225556390578, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (81707489) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 285548 + ... + 285833.

It is an arithmetic number, because the mean of its divisors is an integer number (11999022).

Almost surely, 2^81707483 is an apocalyptic number.

81707483 is a deficient number, since it is larger than the sum of its proper divisors (14284693).

81707483 is a wasteful number, since it uses less digits than its factorization.

81707483 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571405.

The product of its (nonzero) digits is 37632, while the sum is 38.

The square root of 81707483 is about 9039.2191587548. The cubic root of 81707483 is about 433.9309336037.

The spelling of 81707483 in words is "eighty-one million, seven hundred seven thousand, four hundred eighty-three".