99889051 has 2 divisors, whose sum is σ = 99889052. Its totient is φ = 99889050.

The previous prime is 99889033. The next prime is 99889087. The reversal of 99889051 is 15098899.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 99889051 - 2²¹ = 97791899 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 99888986 and 99889004.

It is not a weakly prime, because it can be changed into another prime (99889151) 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, 49944525 + 49944526.

It is an arithmetic number, because the mean of its divisors is an integer number (49944526).

Almost surely, 2^99889051 is an apocalyptic number.

99889051 is a deficient number, since it is larger than the sum of its proper divisors (1).

99889051 is an equidigital number, since it uses as much as digits as its factorization.

99889051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 233280, while the sum is 49.

The square root of 99889051 is about 9994.4510104357. The cubic root of 99889051 is about 463.9871599573.

The spelling of 99889051 in words is "ninety-nine million, eight hundred eighty-nine thousand, fifty-one".