9769999 has 4 divisors (see below), whose sum is σ = 9824760. Its totient is φ = 9715240.

The previous prime is 9769993. The next prime is 9770017. The reversal of 9769999 is 9999679.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9999679 = 449 ⋅22271.

It is a cyclic number.

It is not a de Polignac number, because 9769999 - 2¹⁷ = 9638927 is a prime.

It is a Duffinian number.

9769999 is a modest number, since divided by 9999 gives 976 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9769993) 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, 27112 + ... + 27469.

It is an arithmetic number, because the mean of its divisors is an integer number (2456190).

Almost surely, 2^9769999 is an apocalyptic number.

9769999 is a deficient number, since it is larger than the sum of its proper divisors (54761).

9769999 is a wasteful number, since it uses less digits than its factorization.

9769999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54760.

The product of its digits is 2480058, while the sum is 58.

The square root of 9769999 is about 3125.6997616534. The cubic root of 9769999 is about 213.7789008264.

The spelling of 9769999 in words is "nine million, seven hundred sixty-nine thousand, nine hundred ninety-nine".