84465690 has 64 divisors (see below), whose sum is σ = 222082560. Its totient is φ = 20464640.

The previous prime is 84465679. The next prime is 84465691. The reversal of 84465690 is 9656448.

It is a super-2 number, since 2×84465690² = 14268905574352200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (84465691) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11935 + ... + 17645.

It is an arithmetic number, because the mean of its divisors is an integer number (3470040).

Almost surely, 2^84465690 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 84465690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111041280).

84465690 is an abundant number, since it is smaller than the sum of its proper divisors (137616870).

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

84465690 is a wasteful number, since it uses less digits than its factorization.

84465690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5767.

The product of its (nonzero) digits is 207360, while the sum is 42.

The square root of 84465690 is about 9190.5217479749. The cubic root of 84465690 is about 438.7597476751.

The spelling of 84465690 in words is "eighty-four million, four hundred sixty-five thousand, six hundred ninety".