104887897973 has 2 divisors, whose sum is σ = 104887897974. Its totient is φ = 104887897972.

The previous prime is 104887897859. The next prime is 104887898009. The reversal of 104887897973 is 379798788401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 97380195364 + 7507702609 = 312058^2 + 86647^2 .

It is an emirp because it is prime and its reverse (379798788401) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-104887897973 is a prime.

It is a super-2 number, since 2×104887897973² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 104887897897 and 104887897906.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (104887897273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52443948986 + 52443948987.

It is an arithmetic number, because the mean of its divisors is an integer number (52443948987).

Almost surely, 2^104887897973 is an apocalyptic number.

It is an amenable number.

104887897973 is a deficient number, since it is larger than the sum of its proper divisors (1).

104887897973 is an equidigital number, since it uses as much as digits as its factorization.

104887897973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 170698752, while the sum is 71.

The spelling of 104887897973 in words is "one hundred four billion, eight hundred eighty-seven million, eight hundred ninety-seven thousand, nine hundred seventy-three".