2647320 has 64 divisors (see below), whose sum is σ = 8557920. Its totient is φ = 651264.

The previous prime is 2647319. The next prime is 2647321. The reversal of 2647320 is 237462.

2647320 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2647319) and next prime (2647321).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2647321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 712 + ... + 2408.

2^2647320 is an apocalyptic number.

2647320 is a gapful number since it is divisible by the number (20) 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 2647320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4278960).

2647320 is an abundant number, since it is smaller than the sum of its proper divisors (5910600).

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

2647320 is a wasteful number, since it uses less digits than its factorization.

2647320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1724 (or 1720 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 2647320 is about 1627.0586959296. The cubic root of 2647320 is about 138.3360848471.

The spelling of 2647320 in words is "two million, six hundred forty-seven thousand, three hundred twenty".