8237213293 has 2 divisors, whose sum is σ = 8237213294. Its totient is φ = 8237213292.

The previous prime is 8237213249. The next prime is 8237213401. The reversal of 8237213293 is 3923127328.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7204105129 + 1033108164 = 84877^2 + 32142^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8237213293 is a prime.

It is a super-3 number, since 3×8237213293³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8237213213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4118606646 + 4118606647.

It is an arithmetic number, because the mean of its divisors is an integer number (4118606647).

Almost surely, 2^8237213293 is an apocalyptic number.

It is an amenable number.

8237213293 is a deficient number, since it is larger than the sum of its proper divisors (1).

8237213293 is an equidigital number, since it uses as much as digits as its factorization.

8237213293 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108864, while the sum is 40.

The square root of 8237213293 is about 90759.0948225025. The cubic root of 8237213293 is about 2019.5755482560.

The spelling of 8237213293 in words is "eight billion, two hundred thirty-seven million, two hundred thirteen thousand, two hundred ninety-three".