80354647 has 4 divisors (see below), whose sum is σ = 80403696. Its totient is φ = 80305600.

The previous prime is 80354627. The next prime is 80354669. The reversal of 80354647 is 74645308.

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 80354647 - 2¹¹ = 80352599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80354627) 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, 21979 + ... + 25372.

It is an arithmetic number, because the mean of its divisors is an integer number (20100924).

Almost surely, 2^80354647 is an apocalyptic number.

80354647 is a deficient number, since it is larger than the sum of its proper divisors (49049).

80354647 is a wasteful number, since it uses less digits than its factorization.

80354647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49048.

The product of its (nonzero) digits is 80640, while the sum is 37.

The square root of 80354647 is about 8964.0753566667. The cubic root of 80354647 is about 431.5227192715.

The spelling of 80354647 in words is "eighty million, three hundred fifty-four thousand, six hundred forty-seven".