84152638 has 4 divisors (see below), whose sum is σ = 126228960. Its totient is φ = 42076318.

The previous prime is 84152633. The next prime is 84152647. The reversal of 84152638 is 83625148.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 84152597 and 84152606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84152633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21038158 + ... + 21038161.

It is an arithmetic number, because the mean of its divisors is an integer number (31557240).

Almost surely, 2^84152638 is an apocalyptic number.

84152638 is a deficient number, since it is larger than the sum of its proper divisors (42076322).

84152638 is a wasteful number, since it uses less digits than its factorization.

84152638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42076321.

The product of its digits is 46080, while the sum is 37.

The square root of 84152638 is about 9173.4746961007. The cubic root of 84152638 is about 438.2170237299.

The spelling of 84152638 in words is "eighty-four million, one hundred fifty-two thousand, six hundred thirty-eight".