7661672 has 8 divisors (see below), whose sum is σ = 14365650. Its totient is φ = 3830832.

The previous prime is 7661671. The next prime is 7661677. The reversal of 7661672 is 2761667.

It can be written as a sum of positive squares in only one way, i.e., 4104676 + 3556996 = 2026^2 + 1886^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (7661671) by changing a digit.

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 as a sum of consecutive naturals, namely, 478847 + ... + 478862.

Almost surely, 2^7661672 is an apocalyptic number.

It is an amenable number.

7661672 is a deficient number, since it is larger than the sum of its proper divisors (6703978).

7661672 is a wasteful number, since it uses less digits than its factorization.

7661672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 957715 (or 957711 counting only the distinct ones).

The product of its digits is 21168, while the sum is 35.

The square root of 7661672 is about 2767.9725432164. The cubic root of 7661672 is about 197.1398939353.

The spelling of 7661672 in words is "seven million, six hundred sixty-one thousand, six hundred seventy-two".