99669434 has 4 divisors (see below), whose sum is σ = 149504154. Its totient is φ = 49834716.

The previous prime is 99669431. The next prime is 99669439. The reversal of 99669434 is 43496699.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 96963409 + 2706025 = 9847^2 + 1645^2 .

It is not an unprimeable number, because it can be changed into a prime (99669431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24917357 + ... + 24917360.

Almost surely, 2^99669434 is an apocalyptic number.

99669434 is a deficient number, since it is larger than the sum of its proper divisors (49834720).

99669434 is a wasteful number, since it uses less digits than its factorization.

99669434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49834719.

The product of its digits is 1259712, while the sum is 50.

The square root of 99669434 is about 9983.4580181418. The cubic root of 99669434 is about 463.6468682788.

The spelling of 99669434 in words is "ninety-nine million, six hundred sixty-nine thousand, four hundred thirty-four".