8492720 has 40 divisors (see below), whose sum is σ = 20128176. Its totient is φ = 3331328.

The previous prime is 8492717. The next prime is 8492749. The reversal of 8492720 is 272948.

It is a tau number, because it is divible by the number of its divisors (40).

It is a d-powerful number, because it can be written as 8⁵ + 4⁶ + 9⁵ + 2¹³ + 7 + 2²³ + 0 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3239 + ... + 5241.

Almost surely, 2^8492720 is an apocalyptic number.

8492720 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8492720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10064088).

8492720 is an abundant number, since it is smaller than the sum of its proper divisors (11635456).

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

8492720 is a wasteful number, since it uses less digits than its factorization.

8492720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2069 (or 2063 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 8492720 is about 2914.2271702803. The cubic root of 8492720 is about 204.0244748285.

The spelling of 8492720 in words is "eight million, four hundred ninety-two thousand, seven hundred twenty".