99870607 has 2 divisors, whose sum is σ = 99870608. Its totient is φ = 99870606.

The previous prime is 99870599. The next prime is 99870611. The reversal of 99870607 is 70607899.

It is a strong prime.

It is an emirp because it is prime and its reverse (70607899) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99870607 - 2³ = 99870599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99870637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49935303 + 49935304.

It is an arithmetic number, because the mean of its divisors is an integer number (49935304).

Almost surely, 2^99870607 is an apocalyptic number.

99870607 is a deficient number, since it is larger than the sum of its proper divisors (1).

99870607 is an equidigital number, since it uses as much as digits as its factorization.

99870607 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 190512, while the sum is 46.

The square root of 99870607 is about 9993.5282558264. The cubic root of 99870607 is about 463.9586005845.

The spelling of 99870607 in words is "ninety-nine million, eight hundred seventy thousand, six hundred seven".