99428077 has 8 divisors (see below), whose sum is σ = 116050176. Its totient is φ = 83410512.

The previous prime is 99428071. The next prime is 99428081. The reversal of 99428077 is 77082499.

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

It is a cyclic number.

It is not a de Polignac number, because 99428077 - 2¹¹ = 99426029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99428071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150778 + ... + 151435.

It is an arithmetic number, because the mean of its divisors is an integer number (14506272).

Almost surely, 2^99428077 is an apocalyptic number.

It is an amenable number.

99428077 is a deficient number, since it is larger than the sum of its proper divisors (16622099).

99428077 is a wasteful number, since it uses less digits than its factorization.

99428077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302267.

The product of its (nonzero) digits is 254016, while the sum is 46.

The square root of 99428077 is about 9971.3628456696. The cubic root of 99428077 is about 463.2723139053.

The spelling of 99428077 in words is "ninety-nine million, four hundred twenty-eight thousand, seventy-seven".