84662490 has 96 divisors (see below), whose sum is σ = 226836288. Its totient is φ = 20204800.

The previous prime is 84662447. The next prime is 84662491. The reversal of 84662490 is 9426648.

It is not an unprimeable number, because it can be changed into a prime (84662491) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 301150 + ... + 301430.

It is an arithmetic number, because the mean of its divisors is an integer number (2362878).

Almost surely, 2^84662490 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 84662490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113418144).

84662490 is an abundant number, since it is smaller than the sum of its proper divisors (142173798).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

84662490 is a wasteful number, since it uses less digits than its factorization.

84662490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396 (or 385 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 39.

The square root of 84662490 is about 9201.2222014252. Note that the first 4 decimals coincide. The cubic root of 84662490 is about 439.1002446792.

It can be divided in two parts, 846 and 62490, that added together give a palindrome (63336).

The spelling of 84662490 in words is "eighty-four million, six hundred sixty-two thousand, four hundred ninety".