83814427 has 4 divisors (see below), whose sum is σ = 85188496. Its totient is φ = 82440360.

The previous prime is 83814371. The next prime is 83814433. The reversal of 83814427 is 72441838.

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 83814427 - 2⁷ = 83814299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83812427) 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, 686943 + ... + 687064.

It is an arithmetic number, because the mean of its divisors is an integer number (21297124).

Almost surely, 2^83814427 is an apocalyptic number.

83814427 is a deficient number, since it is larger than the sum of its proper divisors (1374069).

83814427 is a wasteful number, since it uses less digits than its factorization.

83814427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1374068.

The product of its digits is 43008, while the sum is 37.

The square root of 83814427 is about 9155.0219551894. The cubic root of 83814427 is about 437.6291680646.

The spelling of 83814427 in words is "eighty-three million, eight hundred fourteen thousand, four hundred twenty-seven".