849069427 has 4 divisors (see below), whose sum is σ = 849652840. Its totient is φ = 848486016.

The previous prime is 849069391. The next prime is 849069467. The reversal of 849069427 is 724960948.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-849069427 is a prime.

It is a super-2 number, since 2×849069427² = 1441837783732216658, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (849069467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 289518 + ... + 292435.

It is an arithmetic number, because the mean of its divisors is an integer number (212413210).

Almost surely, 2^849069427 is an apocalyptic number.

849069427 is a deficient number, since it is larger than the sum of its proper divisors (583413).

849069427 is a wasteful number, since it uses less digits than its factorization.

849069427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 583412.

The product of its (nonzero) digits is 870912, while the sum is 49.

The square root of 849069427 is about 29138.7959085478. The cubic root of 849069427 is about 946.9224238023.

The spelling of 849069427 in words is "eight hundred forty-nine million, sixty-nine thousand, four hundred twenty-seven".