80534747 has 4 divisors (see below), whose sum is σ = 80561640. Its totient is φ = 80507856.

The previous prime is 80534731. The next prime is 80534777. The reversal of 80534747 is 74743508.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 80534747 - 2⁴ = 80534731 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 80534747.

It is not an unprimeable number, because it can be changed into a prime (80534777) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8297 + ... + 15162.

It is an arithmetic number, because the mean of its divisors is an integer number (20140410).

Almost surely, 2^80534747 is an apocalyptic number.

80534747 is a deficient number, since it is larger than the sum of its proper divisors (26893).

80534747 is a wasteful number, since it uses less digits than its factorization.

80534747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26892.

The product of its (nonzero) digits is 94080, while the sum is 38.

The square root of 80534747 is about 8974.1153881594. The cubic root of 80534747 is about 431.8448713556.

The spelling of 80534747 in words is "eighty million, five hundred thirty-four thousand, seven hundred forty-seven".