7661338 has 4 divisors (see below), whose sum is σ = 11492010. Its totient is φ = 3830668.

The previous prime is 7661333. The next prime is 7661347. The reversal of 7661338 is 8331667.

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

It can be written as a sum of positive squares in only one way, i.e., 6827769 + 833569 = 2613^2 + 913^2 .

It is not an unprimeable number, because it can be changed into a prime (7661333) by changing a digit.

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 as a sum of consecutive naturals, namely, 1915333 + ... + 1915336.

Almost surely, 2^7661338 is an apocalyptic number.

7661338 is a deficient number, since it is larger than the sum of its proper divisors (3830672).

7661338 is a wasteful number, since it uses less digits than its factorization.

7661338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3830671.

The product of its digits is 18144, while the sum is 34.

The square root of 7661338 is about 2767.9122095905. The cubic root of 7661338 is about 197.1370292133.

The spelling of 7661338 in words is "seven million, six hundred sixty-one thousand, three hundred thirty-eight".