84029938 has 4 divisors (see below), whose sum is σ = 126044910. Its totient is φ = 42014968.

The previous prime is 84029873. The next prime is 84029941. The reversal of 84029938 is 83992048.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 70509609 + 13520329 = 8397^2 + 3677^2 .

It is a super-2 number, since 2×84029938² = 14122060960567688, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 84029894 and 84029903.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21007483 + ... + 21007486.

Almost surely, 2^84029938 is an apocalyptic number.

84029938 is a deficient number, since it is larger than the sum of its proper divisors (42014972).

84029938 is a wasteful number, since it uses less digits than its factorization.

84029938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42014971.

The product of its (nonzero) digits is 124416, while the sum is 43.

The square root of 84029938 is about 9166.7844962124. The cubic root of 84029938 is about 438.0039371914.

The spelling of 84029938 in words is "eighty-four million, twenty-nine thousand, nine hundred thirty-eight".