7289660 has 24 divisors (see below), whose sum is σ = 17495520. Its totient is φ = 2499264.

The previous prime is 7289657. The next prime is 7289663. The reversal of 7289660 is 669827.

It is an interprime number because it is at equal distance from previous prime (7289657) and next prime (7289663).

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7289663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25895 + ... + 26174.

It is an arithmetic number, because the mean of its divisors is an integer number (728980).

Almost surely, 2^7289660 is an apocalyptic number.

7289660 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

7289660 is an abundant number, since it is smaller than the sum of its proper divisors (10205860).

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

7289660 is a wasteful number, since it uses less digits than its factorization.

7289660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52085 (or 52083 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 7289660 is about 2699.9370363029. The cubic root of 7289660 is about 193.8961076206.

The spelling of 7289660 in words is "seven million, two hundred eighty-nine thousand, six hundred sixty".