7661306 has 8 divisors (see below), whose sum is σ = 11522100. Its totient is φ = 3820608.

The previous prime is 7661299. The next prime is 7661317. The reversal of 7661306 is 6031667.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 7513081 + 148225 = 2741^2 + 385^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4031 + ... + 5618.

Almost surely, 2^7661306 is an apocalyptic number.

7661306 is a deficient number, since it is larger than the sum of its proper divisors (3860794).

7661306 is a wasteful number, since it uses less digits than its factorization.

7661306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10048.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 7661306 is about 2767.9064290543. The cubic root of 7661306 is about 197.1367547445.

The spelling of 7661306 in words is "seven million, six hundred sixty-one thousand, three hundred six".