84490311 has 8 divisors (see below), whose sum is σ = 116538480. Its totient is φ = 54384512.

The previous prime is 84490309. The next prime is 84490319. The reversal of 84490311 is 11309448.

It is a happy number.

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

It is not a de Polignac number, because 84490311 - 2¹ = 84490309 is a prime.

It is a super-2 number, since 2×84490311² = 14277225305753442, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84490319) 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 7 ways as a sum of consecutive naturals, for example, 485490 + ... + 485663.

It is an arithmetic number, because the mean of its divisors is an integer number (14567310).

Almost surely, 2^84490311 is an apocalyptic number.

84490311 is a deficient number, since it is larger than the sum of its proper divisors (32048169).

84490311 is a wasteful number, since it uses less digits than its factorization.

84490311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 971185.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 84490311 is about 9191.8611281938. The cubic root of 84490311 is about 438.8023750594.

Adding to 84490311 its reverse (11309448), we get a palindrome (95799759).

The spelling of 84490311 in words is "eighty-four million, four hundred ninety thousand, three hundred eleven".