84626321 has 8 divisors (see below), whose sum is σ = 94279080. Its totient is φ = 75422592.

The previous prime is 84626317. The next prime is 84626327. The reversal of 84626321 is 12362648.

It can be written as a sum of positive squares in 4 ways, for example, as 4774225 + 79852096 = 2185^2 + 8936^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 84626321 - 2² = 84626317 is a prime.

It is a super-2 number, since 2×84626321² = 14323228411990082, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84626327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111860 + ... + 112613.

It is an arithmetic number, because the mean of its divisors is an integer number (11784885).

Almost surely, 2^84626321 is an apocalyptic number.

It is an amenable number.

84626321 is a deficient number, since it is larger than the sum of its proper divisors (9652759).

84626321 is a wasteful number, since it uses less digits than its factorization.

84626321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224515.

The product of its digits is 13824, while the sum is 32.

The square root of 84626321 is about 9199.2565460476. The cubic root of 84626321 is about 439.0377058503.

Adding to 84626321 its reverse (12362648), we get a palindrome (96988969).

The spelling of 84626321 in words is "eighty-four million, six hundred twenty-six thousand, three hundred twenty-one".