7740361 has 4 divisors (see below), whose sum is σ = 8007300. Its totient is φ = 7473424.

The previous prime is 7740323. The next prime is 7740371. The reversal of 7740361 is 1630477.

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 4280761 + 3459600 = 2069^2 + 1860^2 .

It is a cyclic number.

It is not a de Polignac number, because 7740361 - 2⁷ = 7740233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7740371) 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 in 3 ways as a sum of consecutive naturals, for example, 133426 + ... + 133483.

It is an arithmetic number, because the mean of its divisors is an integer number (2001825).

Almost surely, 2^7740361 is an apocalyptic number.

It is an amenable number.

7740361 is a deficient number, since it is larger than the sum of its proper divisors (266939).

7740361 is a wasteful number, since it uses less digits than its factorization.

7740361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266938.

The product of its (nonzero) digits is 3528, while the sum is 28.

The square root of 7740361 is about 2782.1504272774. The cubic root of 7740361 is about 197.8125031841.

The spelling of 7740361 in words is "seven million, seven hundred forty thousand, three hundred sixty-one".