6678057 has 4 divisors (see below), whose sum is σ = 8904080. Its totient is φ = 4452036.

The previous prime is 6678037. The next prime is 6678079. The reversal of 6678057 is 7508766.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 6678057 - 2²² = 2483753 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6678017) 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, 1113007 + ... + 1113012.

It is an arithmetic number, because the mean of its divisors is an integer number (2226020).

Almost surely, 2^6678057 is an apocalyptic number.

It is an amenable number.

6678057 is a deficient number, since it is larger than the sum of its proper divisors (2226023).

6678057 is a wasteful number, since it uses less digits than its factorization.

6678057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2226022.

The product of its (nonzero) digits is 70560, while the sum is 39.

The square root of 6678057 is about 2584.1936846916. The cubic root of 6678057 is about 188.3143319297.

The spelling of 6678057 in words is "six million, six hundred seventy-eight thousand, fifty-seven".