80619047 has 4 divisors (see below), whose sum is σ = 80691960. Its totient is φ = 80546136.

The previous prime is 80619013. The next prime is 80619061. The reversal of 80619047 is 74091608.

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 80619047 - 2¹⁴ = 80602663 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 80618998 and 80619016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80619647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34772 + ... + 37017.

It is an arithmetic number, because the mean of its divisors is an integer number (20172990).

Almost surely, 2^80619047 is an apocalyptic number.

80619047 is a deficient number, since it is larger than the sum of its proper divisors (72913).

80619047 is a wasteful number, since it uses less digits than its factorization.

80619047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72912.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 80619047 is about 8978.8110014634. The cubic root of 80619047 is about 431.9954971381.

The spelling of 80619047 in words is "eighty million, six hundred nineteen thousand, forty-seven".