12057778 has 8 divisors (see below), whose sum is σ = 18247068. Its totient is φ = 5975424.

The previous prime is 12057769. The next prime is 12057797. The reversal of 12057778 is 87775021.

It can be written as a sum of positive squares in 2 ways, for example, as 11950849 + 106929 = 3457^2 + 327^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26451 + ... + 26902.

Almost surely, 2^12057778 is an apocalyptic number.

12057778 is a deficient number, since it is larger than the sum of its proper divisors (6189290).

12057778 is a wasteful number, since it uses less digits than its factorization.

12057778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53468.

The product of its (nonzero) digits is 27440, while the sum is 37.

The square root of 12057778 is about 3472.4311368262. The cubic root of 12057778 is about 229.3097009142.

The spelling of 12057778 in words is "twelve million, fifty-seven thousand, seven hundred seventy-eight".