7021534028 has 6 divisors (see below), whose sum is σ = 12287684556. Its totient is φ = 3510767012.

The previous prime is 7021534019. The next prime is 7021534031. The reversal of 7021534028 is 8204351207.

It is a junction number, because it is equal to n+sod(n) for n = 7021533985 and 7021534003.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 877691750 + ... + 877691757.

It is an arithmetic number, because the mean of its divisors is an integer number (2047947426).

Almost surely, 2^7021534028 is an apocalyptic number.

It is an amenable number.

7021534028 is a deficient number, since it is larger than the sum of its proper divisors (5266150528).

7021534028 is a wasteful number, since it uses less digits than its factorization.

7021534028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1755383511 (or 1755383509 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 7021534028 is about 83794.5942647854. The cubic root of 7021534028 is about 1914.8907515841.

The spelling of 7021534028 in words is "seven billion, twenty-one million, five hundred thirty-four thousand, twenty-eight".