84021003 has 32 divisors (see below), whose sum is σ = 137548800. Its totient is φ = 50263200.

The previous prime is 84020977. The next prime is 84021017. The reversal of 84021003 is 30012048.

It is a happy number.

It is not a de Polignac number, because 84021003 - 2⁹ = 84020491 is a prime.

It is not an unprimeable number, because it can be changed into a prime (84021053) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21673 + ... + 25253.

It is an arithmetic number, because the mean of its divisors is an integer number (4298400).

Almost surely, 2^84021003 is an apocalyptic number.

84021003 is a deficient number, since it is larger than the sum of its proper divisors (53527797).

84021003 is a wasteful number, since it uses less digits than its factorization.

84021003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3680 (or 3674 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 84021003 is about 9166.2971258846. The cubic root of 84021003 is about 437.9884121536.

The spelling of 84021003 in words is "eighty-four million, twenty-one thousand, three".