6669774 has 24 divisors (see below), whose sum is σ = 14918592. Its totient is φ = 2151360.

The previous prime is 6669769. The next prime is 6669781. The reversal of 6669774 is 4779666.

It is a super-2 number, since 2×6669774² = 88971770422152, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5419 + ... + 6534.

It is an arithmetic number, because the mean of its divisors is an integer number (621608).

Almost surely, 2^6669774 is an apocalyptic number.

6669774 is an abundant number, since it is smaller than the sum of its proper divisors (8248818).

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

6669774 is a wasteful number, since it uses less digits than its factorization.

6669774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11992 (or 11989 counting only the distinct ones).

The product of its digits is 381024, while the sum is 45.

The square root of 6669774 is about 2582.5905598836. The cubic root of 6669774 is about 188.2364423605.

It can be divided in two parts, 666 and 9774, that added together give a triangular number (10440 = T₁₄₄).

The spelling of 6669774 in words is "six million, six hundred sixty-nine thousand, seven hundred seventy-four".