99975677 has 4 divisors (see below), whose sum is σ = 101670240. Its totient is φ = 98281116.

The previous prime is 99975661. The next prime is 99975679. The reversal of 99975677 is 77657999.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 99975677 - 2⁴ = 99975661 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (59), and also a Moran number because the ratio is a prime number: 1694503 = 99975677 / (9 + 9 + 9 + 7 + 5 + 6 + 7 + 7).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99975679) 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 3 ways as a sum of consecutive naturals, for example, 847193 + ... + 847310.

It is an arithmetic number, because the mean of its divisors is an integer number (25417560).

Almost surely, 2^99975677 is an apocalyptic number.

It is an amenable number.

99975677 is a deficient number, since it is larger than the sum of its proper divisors (1694563).

99975677 is a wasteful number, since it uses less digits than its factorization.

99975677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1694562.

The product of its digits is 7501410, while the sum is 59.

The square root of 99975677 is about 9998.7837760400. The cubic root of 99975677 is about 464.1212478547.

The spelling of 99975677 in words is "ninety-nine million, nine hundred seventy-five thousand, six hundred seventy-seven".