84235147 has 4 divisors (see below), whose sum is σ = 85492456. Its totient is φ = 82977840.

The previous prime is 84235141. The next prime is 84235157. The reversal of 84235147 is 74153248.

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 84235147 - 2¹⁹ = 83710859 is a prime.

It is a super-2 number, since 2×84235147² = 14191119980223218, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84235141) 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, 628554 + ... + 628687.

It is an arithmetic number, because the mean of its divisors is an integer number (21373114).

Almost surely, 2^84235147 is an apocalyptic number.

84235147 is a deficient number, since it is larger than the sum of its proper divisors (1257309).

84235147 is a wasteful number, since it uses less digits than its factorization.

84235147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1257308.

The product of its digits is 26880, while the sum is 34.

The square root of 84235147 is about 9177.9707452138. The cubic root of 84235147 is about 438.3601962587.

The spelling of 84235147 in words is "eighty-four million, two hundred thirty-five thousand, one hundred forty-seven".