7669961 has 4 divisors (see below), whose sum is σ = 8259972. Its totient is φ = 7079952.

The previous prime is 7669951. The next prime is 7669967. The reversal of 7669961 is 1699667.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2175625 + 5494336 = 1475^2 + 2344^2 .

It is a cyclic number.

It is not a de Polignac number, because 7669961 - 2¹⁰ = 7668937 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7669967) 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, 294986 + ... + 295011.

It is an arithmetic number, because the mean of its divisors is an integer number (2064993).

Almost surely, 2^7669961 is an apocalyptic number.

It is an amenable number.

7669961 is a deficient number, since it is larger than the sum of its proper divisors (590011).

7669961 is a wasteful number, since it uses less digits than its factorization.

7669961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 590010.

The product of its digits is 122472, while the sum is 44.

The square root of 7669961 is about 2769.4694437744. The cubic root of 7669961 is about 197.2109621320.

The spelling of 7669961 in words is "seven million, six hundred sixty-nine thousand, nine hundred sixty-one".