99061971 has 8 divisors (see below), whose sum is σ = 133754880. Its totient is φ = 65205192.

The previous prime is 99061967. The next prime is 99061973. The reversal of 99061971 is 17916099.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 99061971 - 2² = 99061967 is a prime.

It is not an unprimeable number, because it can be changed into a prime (99061973) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 208755 + ... + 209228.

It is an arithmetic number, because the mean of its divisors is an integer number (16719360).

Almost surely, 2^99061971 is an apocalyptic number.

99061971 is a deficient number, since it is larger than the sum of its proper divisors (34692909).

99061971 is a wasteful number, since it uses less digits than its factorization.

99061971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418065.

The product of its (nonzero) digits is 30618, while the sum is 42.

The square root of 99061971 is about 9952.9880437987. The cubic root of 99061971 is about 462.7030066682.

The spelling of 99061971 in words is "ninety-nine million, sixty-one thousand, nine hundred seventy-one".