99667012 has 6 divisors (see below), whose sum is σ = 174417278. Its totient is φ = 49833504.

The previous prime is 99667003. The next prime is 99667013. The reversal of 99667012 is 21076699.

It can be written as a sum of positive squares in only one way, i.e., 74926336 + 24740676 = 8656^2 + 4974^2 .

It is not an unprimeable number, because it can be changed into a prime (99667013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12458373 + ... + 12458380.

Almost surely, 2^99667012 is an apocalyptic number.

It is an amenable number.

99667012 is a deficient number, since it is larger than the sum of its proper divisors (74750266).

99667012 is a wasteful number, since it uses less digits than its factorization.

99667012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24916757 (or 24916755 counting only the distinct ones).

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

The square root of 99667012 is about 9983.3367167496. The cubic root of 99667012 is about 463.6431126579.

The spelling of 99667012 in words is "ninety-nine million, six hundred sixty-seven thousand, twelve".