1247079383 has 8 divisors (see below), whose sum is σ = 1432053120. Its totient is φ = 1074039480.

The previous prime is 1247079371. The next prime is 1247079409. The reversal of 1247079383 is 3839707421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1247079383 - 2¹² = 1247075287 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 (1247079313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2983235 + ... + 2983652.

It is an arithmetic number, because the mean of its divisors is an integer number (179006640).

Almost surely, 2^1247079383 is an apocalyptic number.

1247079383 is a deficient number, since it is larger than the sum of its proper divisors (184973737).

1247079383 is a wasteful number, since it uses less digits than its factorization.

1247079383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5966917.

The product of its (nonzero) digits is 254016, while the sum is 44.

The square root of 1247079383 is about 35314.0111428877. The cubic root of 1247079383 is about 1076.3777202726.

The spelling of 1247079383 in words is "one billion, two hundred forty-seven million, seventy-nine thousand, three hundred eighty-three".