99797722 has 4 divisors (see below), whose sum is σ = 149696586. Its totient is φ = 49898860.

The previous prime is 99797693. The next prime is 99797767. The reversal of 99797722 is 22779799.

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., 69205761 + 30591961 = 8319^2 + 5531^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 99797722.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24949429 + ... + 24949432.

Almost surely, 2^99797722 is an apocalyptic number.

99797722 is a deficient number, since it is larger than the sum of its proper divisors (49898864).

99797722 is a wasteful number, since it uses less digits than its factorization.

99797722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49898863.

The product of its digits is 1000188, while the sum is 52.

The square root of 99797722 is about 9989.8809802720. The cubic root of 99797722 is about 463.8457083362.

The spelling of 99797722 in words is "ninety-nine million, seven hundred ninety-seven thousand, seven hundred twenty-two".