99772611 has 8 divisors (see below), whose sum is σ = 133253904. Its totient is φ = 66403200.

The previous prime is 99772573. The next prime is 99772633. The reversal of 99772611 is 11627799.

It is a happy number.

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

It is not a de Polignac number, because 99772611 - 2¹⁰ = 99771587 is a prime.

It is not an unprimeable number, because it can be changed into a prime (99772661) 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, 25866 + ... + 29471.

It is an arithmetic number, because the mean of its divisors is an integer number (16656738).

Almost surely, 2^99772611 is an apocalyptic number.

99772611 is a deficient number, since it is larger than the sum of its proper divisors (33481293).

99772611 is a wasteful number, since it uses less digits than its factorization.

99772611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55941.

The product of its digits is 47628, while the sum is 42.

The square root of 99772611 is about 9988.6240794215. The cubic root of 99772611 is about 463.8068009463.

The spelling of 99772611 in words is "ninety-nine million, seven hundred seventy-two thousand, six hundred eleven".