99672106 has 4 divisors (see below), whose sum is σ = 149508162. Its totient is φ = 49836052.

The previous prime is 99672077. The next prime is 99672121. The reversal of 99672106 is 60127699.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60127699 = 71 ⋅846869.

It can be written as a sum of positive squares in only one way, i.e., 99301225 + 370881 = 9965^2 + 609^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24918025 + ... + 24918028.

Almost surely, 2^99672106 is an apocalyptic number.

99672106 is a deficient number, since it is larger than the sum of its proper divisors (49836056).

99672106 is a wasteful number, since it uses less digits than its factorization.

99672106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49836055.

The product of its (nonzero) digits is 40824, while the sum is 40.

The square root of 99672106 is about 9983.5918386120. The cubic root of 99672106 is about 463.6510114860.

The spelling of 99672106 in words is "ninety-nine million, six hundred seventy-two thousand, one hundred six".