1273671847 has 36 divisors (see below), whose sum is σ = 1555524400. Its totient is φ = 1042429920.

The previous prime is 1273671823. The next prime is 1273671877. The reversal of 1273671847 is 7481763721.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It is a de Polignac number, because none of the positive numbers 2^k-1273671847 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1273671797 and 1273671806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1273671877) 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 35 ways as a sum of consecutive naturals, for example, 27099378 + ... + 27099424.

Almost surely, 2^1273671847 is an apocalyptic number.

1273671847 is a deficient number, since it is larger than the sum of its proper divisors (281852553).

1273671847 is an frugal number, since it uses more digits than its factorization.

1273671847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197 (or 95 counting only the distinct ones).

The product of its digits is 395136, while the sum is 46.

The square root of 1273671847 is about 35688.5394349503. The cubic root of 1273671847 is about 1083.9747929556.

The spelling of 1273671847 in words is "one billion, two hundred seventy-three million, six hundred seventy-one thousand, eight hundred forty-seven".