7490008289 has 4 divisors (see below), whose sum is σ = 7672691460. Its totient is φ = 7307325120.

The previous prime is 7490008243. The next prime is 7490008303. The reversal of 7490008289 is 9828000947.

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 1957177600 + 5532830689 = 44240^2 + 74383^2 .

It is a cyclic number.

It is not a de Polignac number, because 7490008289 - 2²⁰ = 7488959713 is a prime.

It is a super-2 number, since 2×7490008289² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7490007289) 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, 91341524 + ... + 91341605.

It is an arithmetic number, because the mean of its divisors is an integer number (1918172865).

Almost surely, 2^7490008289 is an apocalyptic number.

It is an amenable number.

7490008289 is a deficient number, since it is larger than the sum of its proper divisors (182683171).

7490008289 is a wasteful number, since it uses less digits than its factorization.

7490008289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182683170.

The product of its (nonzero) digits is 290304, while the sum is 47.

The square root of 7490008289 is about 86544.8339821621. The cubic root of 7490008289 is about 1956.5641848173.

The spelling of 7490008289 in words is "seven billion, four hundred ninety million, eight thousand, two hundred eighty-nine".