7420740617 has 4 divisors (see below), whose sum is σ = 7428067140. Its totient is φ = 7413414096.

The previous prime is 7420740581. The next prime is 7420740619. The reversal of 7420740617 is 7160470247.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7160470247 = 7 ⋅1022924321.

It can be written as a sum of positive squares in 2 ways, for example, as 821452921 + 6599287696 = 28661^2 + 81236^2 .

It is a cyclic number.

It is not a de Polignac number, because 7420740617 - 2⁸ = 7420740361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7420740619) 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, 3661742 + ... + 3663767.

It is an arithmetic number, because the mean of its divisors is an integer number (1857016785).

Almost surely, 2^7420740617 is an apocalyptic number.

It is an amenable number.

7420740617 is a deficient number, since it is larger than the sum of its proper divisors (7326523).

7420740617 is a wasteful number, since it uses less digits than its factorization.

7420740617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7326522.

The product of its (nonzero) digits is 65856, while the sum is 38.

The square root of 7420740617 is about 86143.7207055744. The cubic root of 7420740617 is about 1950.5140539989.

The spelling of 7420740617 in words is "seven billion, four hundred twenty million, seven hundred forty thousand, six hundred seventeen".