80619487 has 4 divisors (see below), whose sum is σ = 86821000. Its totient is φ = 74417976.

The previous prime is 80619481. The next prime is 80619533. The reversal of 80619487 is 78491608.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80619487 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 (80619481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3100737 + ... + 3100762.

It is an arithmetic number, because the mean of its divisors is an integer number (21705250).

Almost surely, 2^80619487 is an apocalyptic number.

80619487 is a deficient number, since it is larger than the sum of its proper divisors (6201513).

80619487 is a wasteful number, since it uses less digits than its factorization.

80619487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6201512.

The product of its (nonzero) digits is 96768, while the sum is 43.

The square root of 80619487 is about 8978.8355035606. The cubic root of 80619487 is about 431.9962830470.

The spelling of 80619487 in words is "eighty million, six hundred nineteen thousand, four hundred eighty-seven".