99605377 has 4 divisors (see below), whose sum is σ = 99632596. Its totient is φ = 99578160.

The previous prime is 99605371. The next prime is 99605381. The reversal of 99605377 is 77350699.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 77350699 = 3989 ⋅19391.

It can be written as a sum of positive squares in 2 ways, for example, as 97634161 + 1971216 = 9881^2 + 1404^2 .

It is a cyclic number.

It is not a de Polignac number, because 99605377 - 2¹⁵ = 99572609 is a prime.

It is a super-2 number, since 2×99605377² = 19842462254624258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99605371) 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, 7074 + ... + 15787.

It is an arithmetic number, because the mean of its divisors is an integer number (24908149).

Almost surely, 2^99605377 is an apocalyptic number.

It is an amenable number.

99605377 is a deficient number, since it is larger than the sum of its proper divisors (27219).

99605377 is a wasteful number, since it uses less digits than its factorization.

99605377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27218.

The product of its (nonzero) digits is 357210, while the sum is 46.

The square root of 99605377 is about 9980.2493455825. The cubic root of 99605377 is about 463.5475192234.

The spelling of 99605377 in words is "ninety-nine million, six hundred five thousand, three hundred seventy-seven".