9777238 has 4 divisors (see below), whose sum is σ = 14665860. Its totient is φ = 4888618.

The previous prime is 9777223. The next prime is 9777239. The reversal of 9777238 is 8327779.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 9777194 and 9777203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9777239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2444308 + ... + 2444311.

It is an arithmetic number, because the mean of its divisors is an integer number (3666465).

Almost surely, 2^9777238 is an apocalyptic number.

9777238 is a deficient number, since it is larger than the sum of its proper divisors (4888622).

9777238 is a wasteful number, since it uses less digits than its factorization.

9777238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4888621.

The product of its digits is 148176, while the sum is 43.

The square root of 9777238 is about 3126.8575279344. The cubic root of 9777238 is about 213.8316870279.

The spelling of 9777238 in words is "nine million, seven hundred seventy-seven thousand, two hundred thirty-eight".