80419491 has 24 divisors (see below), whose sum is σ = 121552704. Its totient is φ = 51181440.

The previous prime is 80419489. The next prime is 80419513. The reversal of 80419491 is 19491408.

It is not a de Polignac number, because 80419491 - 2¹ = 80419489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80419441) 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 23 ways as a sum of consecutive naturals, for example, 15025 + ... + 19661.

It is an arithmetic number, because the mean of its divisors is an integer number (5064696).

Almost surely, 2^80419491 is an apocalyptic number.

80419491 is a deficient number, since it is larger than the sum of its proper divisors (41133213).

80419491 is a wasteful number, since it uses less digits than its factorization.

80419491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4731 (or 4728 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 80419491 is about 8967.6915089671. The cubic root of 80419491 is about 431.6387637352.

The spelling of 80419491 in words is "eighty million, four hundred nineteen thousand, four hundred ninety-one".