84647157 has 48 divisors (see below), whose sum is σ = 137237760. Its totient is φ = 46230912.

The previous prime is 84647137. The next prime is 84647179. The reversal of 84647157 is 75174648.

It is not a de Polignac number, because 84647157 - 2⁶ = 84647093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84647137) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 429583 + ... + 429779.

It is an arithmetic number, because the mean of its divisors is an integer number (2859120).

Almost surely, 2^84647157 is an apocalyptic number.

It is an amenable number.

84647157 is a deficient number, since it is larger than the sum of its proper divisors (52590603).

84647157 is a wasteful number, since it uses less digits than its factorization.

84647157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330 (or 323 counting only the distinct ones).

The product of its digits is 188160, while the sum is 42.

The square root of 84647157 is about 9200.3889591691. The cubic root of 84647157 is about 439.0737349835.

The spelling of 84647157 in words is "eighty-four million, six hundred forty-seven thousand, one hundred fifty-seven".