1679216467 has 8 divisors (see below), whose sum is σ = 1687795200. Its totient is φ = 1670649024.

The previous prime is 1679216443. The next prime is 1679216477. The reversal of 1679216467 is 7646129761.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1679216467 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 1679216467.

It is not an unprimeable number, because it can be changed into a prime (1679216417) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 613959 + ... + 616687.

It is an arithmetic number, because the mean of its divisors is an integer number (210974400).

Almost surely, 2^1679216467 is an apocalyptic number.

1679216467 is a deficient number, since it is larger than the sum of its proper divisors (8578733).

1679216467 is a wasteful number, since it uses less digits than its factorization.

1679216467 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5645.

The product of its digits is 762048, while the sum is 49.

The square root of 1679216467 is about 40978.2438252300. The cubic root of 1679216467 is about 1188.5995499487.

The spelling of 1679216467 in words is "one billion, six hundred seventy-nine million, two hundred sixteen thousand, four hundred sixty-seven".