23827097947 has 2 divisors, whose sum is σ = 23827097948. Its totient is φ = 23827097946.

The previous prime is 23827097857. The next prime is 23827097981. The reversal of 23827097947 is 74979072832.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23827097947 is a prime.

It is a super-2 number, since 2×23827097947² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23827097891 and 23827097900.

It is not a weakly prime, because it can be changed into another prime (23827097347) 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 as a sum of consecutive naturals, namely, 11913548973 + 11913548974.

It is an arithmetic number, because the mean of its divisors is an integer number (11913548974).

Almost surely, 2^23827097947 is an apocalyptic number.

23827097947 is a deficient number, since it is larger than the sum of its proper divisors (1).

23827097947 is an equidigital number, since it uses as much as digits as its factorization.

23827097947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10668672, while the sum is 58.

The spelling of 23827097947 in words is "twenty-three billion, eight hundred twenty-seven million, ninety-seven thousand, nine hundred forty-seven".