7227090 has 128 divisors (see below), whose sum is σ = 21772800. Its totient is φ = 1693440.

The previous prime is 7227071. The next prime is 7227109. The reversal of 7227090 is 907227.

It is an interprime number because it is at equal distance from previous prime (7227071) and next prime (7227109).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a zygodrome in base 8.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 101755 + ... + 101825.

It is an arithmetic number, because the mean of its divisors is an integer number (170100).

Almost surely, 2^7227090 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7227090, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10886400).

7227090 is an abundant number, since it is smaller than the sum of its proper divisors (14545710).

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

7227090 is a wasteful number, since it uses less digits than its factorization.

7227090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129 (or 123 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 27.

The square root of 7227090 is about 2688.3247571676. The cubic root of 7227090 is about 193.3397507448.

The spelling of 7227090 in words is "seven million, two hundred twenty-seven thousand, ninety".