8140349 has 4 divisors (see below), whose sum is σ = 9303264. Its totient is φ = 6977436.

The previous prime is 8140343. The next prime is 8140351. The reversal of 8140349 is 9430418.

8140349 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 9430418 = 2 ⋅4715209.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8140349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8140343) 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, 581447 + ... + 581460.

It is an arithmetic number, because the mean of its divisors is an integer number (2325816).

Almost surely, 2^8140349 is an apocalyptic number.

It is an amenable number.

8140349 is a deficient number, since it is larger than the sum of its proper divisors (1162915).

8140349 is a wasteful number, since it uses less digits than its factorization.

8140349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1162914.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 8140349 is about 2853.1296851002. The cubic root of 8140349 is about 201.1628013630.

The spelling of 8140349 in words is "eight million, one hundred forty thousand, three hundred forty-nine".