99376889 has 2 divisors, whose sum is σ = 99376890. Its totient is φ = 99376888.

The previous prime is 99376853. The next prime is 99376933. The reversal of 99376889 is 98867399.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 97851664 + 1525225 = 9892^2 + 1235^2 .

It is an emirp because it is prime and its reverse (98867399) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99376889 - 2⁸ = 99376633 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (99376789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49688444 + 49688445.

It is an arithmetic number, because the mean of its divisors is an integer number (49688445).

Almost surely, 2^99376889 is an apocalyptic number.

It is an amenable number.

99376889 is a deficient number, since it is larger than the sum of its proper divisors (1).

99376889 is an equidigital number, since it uses as much as digits as its factorization.

99376889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5878656, while the sum is 59.

The square root of 99376889 is about 9968.7957647852. The cubic root of 99376889 is about 463.1927989615.

The spelling of 99376889 in words is "ninety-nine million, three hundred seventy-six thousand, eight hundred eighty-nine".