84653670 has 64 divisors (see below), whose sum is σ = 209848320. Its totient is φ = 21842688.

The previous prime is 84653663. The next prime is 84653677. The reversal of 84653670 is 7635648.

It is an interprime number because it is at equal distance from previous prime (84653663) and next prime (84653677).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84653677) 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, 176491 + ... + 176969.

It is an arithmetic number, because the mean of its divisors is an integer number (3278880).

Almost surely, 2^84653670 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 84653670, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104924160).

84653670 is an abundant number, since it is smaller than the sum of its proper divisors (125194650).

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

84653670 is a wasteful number, since it uses less digits than its factorization.

84653670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 669.

The product of its (nonzero) digits is 120960, while the sum is 39.

The square root of 84653670 is about 9200.7429047876. The cubic root of 84653670 is about 439.0849959008.

The spelling of 84653670 in words is "eighty-four million, six hundred fifty-three thousand, six hundred seventy".