99930851 has 2 divisors, whose sum is σ = 99930852. Its totient is φ = 99930850.

The previous prime is 99930847. The next prime is 99930863. The reversal of 99930851 is 15803999.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 99930851 - 2² = 99930847 is a prime.

It is not a weakly prime, because it can be changed into another prime (99930841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49965425 + 49965426.

It is an arithmetic number, because the mean of its divisors is an integer number (49965426).

Almost surely, 2^99930851 is an apocalyptic number.

99930851 is a deficient number, since it is larger than the sum of its proper divisors (1).

99930851 is an equidigital number, since it uses as much as digits as its factorization.

99930851 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 87480, while the sum is 44.

The square root of 99930851 is about 9996.5419520952. The cubic root of 99930851 is about 464.0518716162.

The spelling of 99930851 in words is "ninety-nine million, nine hundred thirty thousand, eight hundred fifty-one".