8349181 has 4 divisors (see below), whose sum is σ = 8543392. Its totient is φ = 8154972.

The previous prime is 8349169. The next prime is 8349197. The reversal of 8349181 is 1819438.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8349181 - 2¹¹ = 8347133 is a prime.

It is a super-2 number, since 2×8349181² = 139417646741522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8349581) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97041 + ... + 97126.

It is an arithmetic number, because the mean of its divisors is an integer number (2135848).

Almost surely, 2^8349181 is an apocalyptic number.

8349181 is the 1545-th centered heptagonal number.

It is an amenable number.

8349181 is a deficient number, since it is larger than the sum of its proper divisors (194211).

8349181 is a wasteful number, since it uses less digits than its factorization.

8349181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194210.

The product of its digits is 6912, while the sum is 34.

The square root of 8349181 is about 2889.4949385663. The cubic root of 8349181 is about 202.8685034162.

The spelling of 8349181 in words is "eight million, three hundred forty-nine thousand, one hundred eighty-one".