84340001 has 4 divisors (see below), whose sum is σ = 84502404. Its totient is φ = 84177600.

The previous prime is 84339991. The next prime is 84340021. The reversal of 84340001 is 10004348.

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

It can be written as a sum of positive squares in 2 ways, for example, as 6635776 + 77704225 = 2576^2 + 8815^2 .

It is a cyclic number.

It is not a de Polignac number, because 84340001 - 2¹⁰ = 84338977 is a prime.

It is a super-2 number, since 2×84340001² = 14226471537360002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84340021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80420 + ... + 81461.

It is an arithmetic number, because the mean of its divisors is an integer number (21125601).

Almost surely, 2^84340001 is an apocalyptic number.

It is an amenable number.

84340001 is a deficient number, since it is larger than the sum of its proper divisors (162403).

84340001 is a wasteful number, since it uses less digits than its factorization.

84340001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162402.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 84340001 is about 9183.6812335795. The cubic root of 84340001 is about 438.5420077837.

Adding to 84340001 its reverse (10004348), we get a palindrome (94344349).

The spelling of 84340001 in words is "eighty-four million, three hundred forty thousand, one".