99669842 has 16 divisors (see below), whose sum is σ = 151417080. Its totient is φ = 49201152.

The previous prime is 99669809. The next prime is 99669881. The reversal of 99669842 is 24896699.

It can be written as a sum of positive squares in 4 ways, for example, as 2627641 + 97042201 = 1621^2 + 9851^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70034 + ... + 71442.

Almost surely, 2^99669842 is an apocalyptic number.

99669842 is a deficient number, since it is larger than the sum of its proper divisors (51747238).

99669842 is a wasteful number, since it uses less digits than its factorization.

99669842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1837.

The product of its digits is 1679616, while the sum is 53.

The square root of 99669842 is about 9983.4784519225. The cubic root of 99669842 is about 463.6475009290.

The spelling of 99669842 in words is "ninety-nine million, six hundred sixty-nine thousand, eight hundred forty-two".