9999377 has 4 divisors (see below), whose sum is σ = 10525680. Its totient is φ = 9473076.

The previous prime is 9999347. The next prime is 9999397. The reversal of 9999377 is 7739999.

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, and also an emirpimes, since its reverse is a distinct semiprime: 7739999 = 83 ⋅93253.

It is a cyclic number.

It is not a de Polignac number, because 9999377 - 2¹⁶ = 9933841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9999317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 263123 + ... + 263160.

It is an arithmetic number, because the mean of its divisors is an integer number (2631420).

Almost surely, 2^9999377 is an apocalyptic number.

It is an amenable number.

9999377 is a deficient number, since it is larger than the sum of its proper divisors (526303).

9999377 is a wasteful number, since it uses less digits than its factorization.

9999377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526302.

The product of its digits is 964467, while the sum is 53.

The square root of 9999377 is about 3162.1791536850. The cubic root of 9999377 is about 215.4389948676.

The spelling of 9999377 in words is "nine million, nine hundred ninety-nine thousand, three hundred seventy-seven".