12077748 has 30 divisors (see below), whose sum is σ = 31574466. Its totient is φ = 4025808.

The previous prime is 12077729. The next prime is 12077759. The reversal of 12077748 is 84777021.

It can be written as a sum of positive squares in only one way, i.e., 6260004 + 5817744 = 2502^2 + 2412^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 18315 + ... + 18962.

Almost surely, 2^12077748 is an apocalyptic number.

12077748 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

12077748 is an abundant number, since it is smaller than the sum of its proper divisors (19496718).

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

12077748 is a wasteful number, since it uses less digits than its factorization.

12077748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37293 (or 37282 counting only the distinct ones).

The product of its (nonzero) digits is 21952, while the sum is 36.

The square root of 12077748 is about 3475.3054542011. The cubic root of 12077748 is about 229.4362247501.

The spelling of 12077748 in words is "twelve million, seventy-seven thousand, seven hundred forty-eight".