80947419 has 16 divisors (see below), whose sum is σ = 128712192. Its totient is φ = 44244288.

The previous prime is 80947411. The next prime is 80947441. The reversal of 80947419 is 91474908.

It is not a de Polignac number, because 80947419 - 2³ = 80947411 is a prime.

It is a super-2 number, since 2×80947419² = 13104969285523122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (80947411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83314 + ... + 84279.

It is an arithmetic number, because the mean of its divisors is an integer number (8044512).

Almost surely, 2^80947419 is an apocalyptic number.

80947419 is a deficient number, since it is larger than the sum of its proper divisors (47764773).

80947419 is a wasteful number, since it uses less digits than its factorization.

80947419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167626.

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 80947419 is about 8997.0783591119. The cubic root of 80947419 is about 432.5812274627.

The spelling of 80947419 in words is "eighty million, nine hundred forty-seven thousand, four hundred nineteen".