7282404487 has 4 divisors (see below), whose sum is σ = 7284328240. Its totient is φ = 7280480736.

The previous prime is 7282404377. The next prime is 7282404511. The reversal of 7282404487 is 7844042827.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7282404487 is a prime.

It is a super-2 number, since 2×7282404487² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7282404287) 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, 956187 + ... + 963772.

It is an arithmetic number, because the mean of its divisors is an integer number (1821082060).

Almost surely, 2^7282404487 is an apocalyptic number.

7282404487 is a deficient number, since it is larger than the sum of its proper divisors (1923753).

7282404487 is a wasteful number, since it uses less digits than its factorization.

7282404487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1923752.

The product of its (nonzero) digits is 802816, while the sum is 46.

The square root of 7282404487 is about 85337.0053786750. The cubic root of 7282404487 is about 1938.3175698656.

The spelling of 7282404487 in words is "seven billion, two hundred eighty-two million, four hundred four thousand, four hundred eighty-seven".