8391672253 has 8 divisors (see below), whose sum is σ = 8633895480. Its totient is φ = 8151237120.

The previous prime is 8391672227. The next prime is 8391672281. The reversal of 8391672253 is 3522761938.

It can be written as a sum of positive squares in 4 ways, for example, as 8988004 + 8382684249 = 2998^2 + 91557^2 .

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-8391672253 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 (8391672283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 437500 + ... + 456277.

It is an arithmetic number, because the mean of its divisors is an integer number (1079236935).

Almost surely, 2^8391672253 is an apocalyptic number.

It is an amenable number.

8391672253 is a deficient number, since it is larger than the sum of its proper divisors (242223227).

8391672253 is a wasteful number, since it uses less digits than its factorization.

8391672253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 894047.

The product of its digits is 544320, while the sum is 46.

The square root of 8391672253 is about 91606.0710488120. The cubic root of 8391672253 is about 2032.1207223269.

The spelling of 8391672253 in words is "eight billion, three hundred ninety-one million, six hundred seventy-two thousand, two hundred fifty-three".