84647379 has 16 divisors (see below), whose sum is σ = 117013248. Its totient is φ = 54385632.

The previous prime is 84647371. The next prime is 84647389. The reversal of 84647379 is 97374648.

It is a happy number.

It is not a de Polignac number, because 84647379 - 2³ = 84647371 is a prime.

It is not an unprimeable number, because it can be changed into a prime (84647371) 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, 8314 + ... + 15440.

It is an arithmetic number, because the mean of its divisors is an integer number (7313328).

Almost surely, 2^84647379 is an apocalyptic number.

84647379 is a deficient number, since it is larger than the sum of its proper divisors (32365869).

84647379 is a wasteful number, since it uses less digits than its factorization.

84647379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7274.

The product of its digits is 1016064, while the sum is 48.

The square root of 84647379 is about 9200.4010238685. The cubic root of 84647379 is about 439.0741188290.

The spelling of 84647379 in words is "eighty-four million, six hundred forty-seven thousand, three hundred seventy-nine".