7081620 has 96 divisors (see below), whose sum is σ = 24423168. Its totient is φ = 1492992.

The previous prime is 7081619. The next prime is 7081637. The reversal of 7081620 is 261807.

7081620 = T₉₁ + T₉₂ + ... + T₃₅₀.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4812 + ... + 6108.

It is an arithmetic number, because the mean of its divisors is an integer number (254408).

Almost surely, 2^7081620 is an apocalyptic number.

7081620 is a gapful number since it is divisible by the number (70) 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 7081620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12211584).

7081620 is an abundant number, since it is smaller than the sum of its proper divisors (17341548).

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

7081620 is a wasteful number, since it uses less digits than its factorization.

7081620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1329 (or 1327 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 7081620 is about 2661.1313383597. The cubic root of 7081620 is about 192.0337397304.

The spelling of 7081620 in words is "seven million, eighty-one thousand, six hundred twenty".