80379619 has 4 divisors (see below), whose sum is σ = 83151360. Its totient is φ = 77607880.

The previous prime is 80379617. The next prime is 80379623. The reversal of 80379619 is 91697308.

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 80379619 - 2¹ = 80379617 is a prime.

It is a super-2 number, since 2×80379619² = 12921766301170322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80379613) 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, 1385827 + ... + 1385884.

It is an arithmetic number, because the mean of its divisors is an integer number (20787840).

Almost surely, 2^80379619 is an apocalyptic number.

80379619 is a deficient number, since it is larger than the sum of its proper divisors (2771741).

80379619 is a wasteful number, since it uses less digits than its factorization.

80379619 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2771740.

The product of its (nonzero) digits is 81648, while the sum is 43.

The square root of 80379619 is about 8965.4681417091. The cubic root of 80379619 is about 431.5674164136.

The spelling of 80379619 in words is "eighty million, three hundred seventy-nine thousand, six hundred nineteen".