6601972 has 12 divisors (see below), whose sum is σ = 12442276. Its totient is φ = 3047040.

The previous prime is 6601961. The next prime is 6601993. The reversal of 6601972 is 2791066.

It can be written as a sum of positive squares in 2 ways, for example, as 4309776 + 2292196 = 2076^2 + 1514^2 .

It is a super-3 number, since 3×6601972³ (a number of 21 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

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 3 ways as a sum of consecutive naturals, for example, 63429 + ... + 63532.

Almost surely, 2^6601972 is an apocalyptic number.

It is an amenable number.

6601972 is a deficient number, since it is larger than the sum of its proper divisors (5840304).

6601972 is a wasteful number, since it uses less digits than its factorization.

6601972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126978 (or 126976 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 6601972 is about 2569.4302870481. The cubic root of 6601972 is about 187.5964256619.

The spelling of 6601972 in words is "six million, six hundred one thousand, nine hundred seventy-two".