8061780 has 24 divisors (see below), whose sum is σ = 22573152. Its totient is φ = 2149792.

The previous prime is 8061773. The next prime is 8061787. The reversal of 8061780 is 871608.

It is an interprime number because it is at equal distance from previous prime (8061773) and next prime (8061787).

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8061787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67122 + ... + 67241.

It is an arithmetic number, because the mean of its divisors is an integer number (940548).

Almost surely, 2^8061780 is an apocalyptic number.

It is an amenable number.

8061780 is an abundant number, since it is smaller than the sum of its proper divisors (14511372).

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

8061780 is a wasteful number, since it uses less digits than its factorization.

8061780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134375 (or 134373 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 30.

The square root of 8061780 is about 2839.3273851390. The cubic root of 8061780 is about 200.5135137232.

The spelling of 8061780 in words is "eight million, sixty-one thousand, seven hundred eighty".