80725743 has 48 divisors (see below), whose sum is σ = 137779200. Its totient is φ = 44592768.

The previous prime is 80725703. The next prime is 80725769. The reversal of 80725743 is 34752708.

80725743 is a `hidden beast` number, since 80 + 7 + 2 + 574 + 3 = 666.

It is not a de Polignac number, because 80725743 - 2¹³ = 80717551 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 80725698 and 80725707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80725703) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 405558 + ... + 405756.

It is an arithmetic number, because the mean of its divisors is an integer number (2870400).

Almost surely, 2^80725743 is an apocalyptic number.

80725743 is a deficient number, since it is larger than the sum of its proper divisors (57053457).

80725743 is a wasteful number, since it uses less digits than its factorization.

80725743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396 (or 393 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The square root of 80725743 is about 8984.7505808453. The cubic root of 80725743 is about 432.1859892303.

The spelling of 80725743 in words is "eighty million, seven hundred twenty-five thousand, seven hundred forty-three".