7290487 has 4 divisors (see below), whose sum is σ = 7525696. Its totient is φ = 7055280.

The previous prime is 7290469. The next prime is 7290511. The reversal of 7290487 is 7840927.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 7290487 - 2⁷ = 7290359 is a prime.

It is a d-powerful number, because it can be written as 7³ + 2¹⁷ + 9⁷ + 0 + 4⁹ + 8⁷ + 7⁵ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7290187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 117558 + ... + 117619.

It is an arithmetic number, because the mean of its divisors is an integer number (1881424).

Almost surely, 2^7290487 is an apocalyptic number.

7290487 is a deficient number, since it is larger than the sum of its proper divisors (235209).

7290487 is a wasteful number, since it uses less digits than its factorization.

7290487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235208.

The product of its (nonzero) digits is 28224, while the sum is 37.

The square root of 7290487 is about 2700.0901836791. The cubic root of 7290487 is about 193.9034397421.

It can be divided in two parts, 7290 and 487, that added together give a palindrome (7777).

The spelling of 7290487 in words is "seven million, two hundred ninety thousand, four hundred eighty-seven".