80357643 has 8 divisors (see below), whose sum is σ = 119048400. Its totient is φ = 53571744.

The previous prime is 80357621. The next prime is 80357659. The reversal of 80357643 is 34675308.

It is a happy number.

80357643 is a `hidden beast` number, since 8 + 0 + 3 + 5 + 7 + 643 = 666.

It is not a de Polignac number, because 80357643 - 2⁹ = 80357131 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 80357598 and 80357607.

It is not an unprimeable number, because it can be changed into a prime (80357243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1488078 + ... + 1488131.

It is an arithmetic number, because the mean of its divisors is an integer number (14881050).

Almost surely, 2^80357643 is an apocalyptic number.

80357643 is a deficient number, since it is larger than the sum of its proper divisors (38690757).

80357643 is a wasteful number, since it uses less digits than its factorization.

80357643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2976218 (or 2976212 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 80357643 is about 8964.2424666003. The cubic root of 80357643 is about 431.5280822718.

The spelling of 80357643 in words is "eighty million, three hundred fifty-seven thousand, six hundred forty-three".