6642954 has 36 divisors (see below), whose sum is σ = 15301494. Its totient is φ = 2082432.

The previous prime is 6642919. The next prime is 6642991. The reversal of 6642954 is 4592466.

6642954 is a `hidden beast` number, since 6 + 642 + 9 + 5 + 4 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 6640929 + 2025 = 2577^2 + 45^2 .

It is a super-2 number, since 2×6642954² = 88257675692232, which contains 22 as substring.

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 17 ways as a sum of consecutive naturals, for example, 4564 + ... + 5840.

Almost surely, 2^6642954 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6642954, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7650747).

6642954 is an abundant number, since it is smaller than the sum of its proper divisors (8658540).

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

6642954 is a wasteful number, since it uses less digits than its factorization.

6642954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1319 (or 1299 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 6642954 is about 2577.3928687726. The cubic root of 6642954 is about 187.9837959476.

The spelling of 6642954 in words is "six million, six hundred forty-two thousand, nine hundred fifty-four".