12777330 has 16 divisors (see below), whose sum is σ = 30665664. Its totient is φ = 3407280.

The previous prime is 12777299. The next prime is 12777341. The reversal of 12777330 is 3377721.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 425911 = 12777330 / (1 + 2 + 7 + 7 + 7 + 3 + 3 + 0).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 212926 + ... + 212985.

It is an arithmetic number, because the mean of its divisors is an integer number (1916604).

Almost surely, 2^12777330 is an apocalyptic number.

12777330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12777330 is an abundant number, since it is smaller than the sum of its proper divisors (17888334).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12777330 is a wasteful number, since it uses less digits than its factorization.

12777330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425921.

The product of its (nonzero) digits is 6174, while the sum is 30.

The square root of 12777330 is about 3574.5391311329. The cubic root of 12777330 is about 233.7832385269.

The spelling of 12777330 in words is "twelve million, seven hundred seventy-seven thousand, three hundred thirty".