8061390 has 64 divisors (see below), whose sum is σ = 21844800. Its totient is φ = 2115072.

The previous prime is 8061371. The next prime is 8061401. The reversal of 8061390 is 931608.

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

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, 19506 + ... + 19914.

It is an arithmetic number, because the mean of its divisors is an integer number (341325).

Almost surely, 2^8061390 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8061390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10922400).

8061390 is an abundant number, since it is smaller than the sum of its proper divisors (13783410).

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

8061390 is a wasteful number, since it uses less digits than its factorization.

8061390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498 (or 492 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 8061390 is about 2839.2587060710. The cubic root of 8061390 is about 200.5102802962.

Adding to 8061390 its reverse (931608), we get a palindrome (8992998).

The spelling of 8061390 in words is "eight million, sixty-one thousand, three hundred ninety".