1253688793 has 8 divisors (see below), whose sum is σ = 1433001920. Its totient is φ = 1074429360.

The previous prime is 1253688727. The next prime is 1253688827. The reversal of 1253688793 is 3978863521.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1253688793 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1253688793.

It is not an unprimeable number, because it can be changed into a prime (1253688703) 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 7 ways as a sum of consecutive naturals, for example, 79738 + ... + 94156.

It is an arithmetic number, because the mean of its divisors is an integer number (179125240).

Almost surely, 2^1253688793 is an apocalyptic number.

It is an amenable number.

1253688793 is a deficient number, since it is larger than the sum of its proper divisors (179313127).

1253688793 is a wasteful number, since it uses less digits than its factorization.

1253688793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26847.

The product of its digits is 2177280, while the sum is 52.

The square root of 1253688793 is about 35407.4680399489. The cubic root of 1253688793 is about 1078.2759395287.

The spelling of 1253688793 in words is "one billion, two hundred fifty-three million, six hundred eighty-eight thousand, seven hundred ninety-three".