8513091 has 6 divisors (see below), whose sum is σ = 12296700. Its totient is φ = 5675388.

The previous prime is 8513077. The next prime is 8513111. The reversal of 8513091 is 1903158.

It is not a de Polignac number, because 8513091 - 2¹⁰ = 8512067 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8513291) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 472941 + ... + 472958.

It is an arithmetic number, because the mean of its divisors is an integer number (2049450).

Almost surely, 2^8513091 is an apocalyptic number.

8513091 is a deficient number, since it is larger than the sum of its proper divisors (3783609).

8513091 is a wasteful number, since it uses less digits than its factorization.

8513091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 945905 (or 945902 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 27.

The square root of 8513091 is about 2917.7201716409. The cubic root of 8513091 is about 204.1874718397.

The spelling of 8513091 in words is "eight million, five hundred thirteen thousand, ninety-one".