7842487 has 8 divisors (see below), whose sum is σ = 7967232. Its totient is φ = 7719000.

The previous prime is 7842481. The next prime is 7842493.

It is a happy number.

7842487 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (7842481) and next prime (7842493).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7842487 - 2¹¹ = 7840439 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7842481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25062 + ... + 25372.

It is an arithmetic number, because the mean of its divisors is an integer number (995904).

Almost surely, 2^7842487 is an apocalyptic number.

7842487 is a deficient number, since it is larger than the sum of its proper divisors (124745).

7842487 is a wasteful number, since it uses less digits than its factorization.

7842487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 629.

The product of its digits is 100352, while the sum is 40.

The square root of 7842487 is about 2800.4440719286. Note that the first 3 decimals coincide. The cubic root of 7842487 is about 198.6786814774.

The spelling of 7842487 in words is "seven million, eight hundred forty-two thousand, four hundred eighty-seven".