6669977 has 4 divisors (see below), whose sum is σ = 6960000. Its totient is φ = 6379956.

The previous prime is 6669973. The next prime is 6669983. The reversal of 6669977 is 7799666.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 6669977 - 2² = 6669973 is a prime.

It is a Duffinian number.

It is a zygodrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (6669973) 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, 144977 + ... + 145022.

It is an arithmetic number, because the mean of its divisors is an integer number (1740000).

Almost surely, 2^6669977 is an apocalyptic number.

It is an amenable number.

6669977 is a deficient number, since it is larger than the sum of its proper divisors (290023).

6669977 is a wasteful number, since it uses less digits than its factorization.

6669977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290022.

The product of its digits is 857304, while the sum is 50.

The square root of 6669977 is about 2582.6298612074. The cubic root of 6669977 is about 188.2383520509.

The spelling of 6669977 in words is "six million, six hundred sixty-nine thousand, nine hundred seventy-seven".