8078091 has 24 divisors (see below), whose sum is σ = 12640320. Its totient is φ = 4575312.

The previous prime is 8078087. The next prime is 8078113. The reversal of 8078091 is 1908708.

It is not a de Polignac number, because 8078091 - 2² = 8078087 is a prime.

8078091 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8078051) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26160 + ... + 26466.

It is an arithmetic number, because the mean of its divisors is an integer number (526680).

Almost surely, 2^8078091 is an apocalyptic number.

8078091 is a deficient number, since it is larger than the sum of its proper divisors (4562229).

8078091 is a wasteful number, since it uses less digits than its factorization.

8078091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 503 (or 496 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 33.

The square root of 8078091 is about 2842.1982689461. The cubic root of 8078091 is about 200.6486523099.

The spelling of 8078091 in words is "eight million, seventy-eight thousand, ninety-one".