84020601 has 16 divisors (see below), whose sum is σ = 128159744. Its totient is φ = 47963664.

The previous prime is 84020597. The next prime is 84020609. The reversal of 84020601 is 10602048.

It is not a de Polignac number, because 84020601 - 2² = 84020597 is a prime.

It is a super-2 number, since 2×84020601² = 14118922784802402, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84020609) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 38136 + ... + 40278.

It is an arithmetic number, because the mean of its divisors is an integer number (8009984).

Almost surely, 2^84020601 is an apocalyptic number.

It is an amenable number.

84020601 is a deficient number, since it is larger than the sum of its proper divisors (44139143).

84020601 is a wasteful number, since it uses less digits than its factorization.

84020601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4020.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 84020601 is about 9166.2751977016. The cubic root of 84020601 is about 437.9877136313.

Adding to 84020601 its reverse (10602048), we get a palindrome (94622649).

The spelling of 84020601 in words is "eighty-four million, twenty thousand, six hundred one".