7942487 has 8 divisors (see below), whose sum is σ = 9288576. Its totient is φ = 6649272.

The previous prime is 7942481. The next prime is 7942499. The reversal of 7942487 is 7842497.

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

It is not a de Polignac number, because 7942487 - 2⁴ = 7942471 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 (7942481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12893 + ... + 13494.

It is an arithmetic number, because the mean of its divisors is an integer number (1161072).

Almost surely, 2^7942487 is an apocalyptic number.

7942487 is a deficient number, since it is larger than the sum of its proper divisors (1346089).

7942487 is a wasteful number, since it uses less digits than its factorization.

7942487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26437.

The product of its digits is 112896, while the sum is 41.

The square root of 7942487 is about 2818.2418278068. The cubic root of 7942487 is about 199.5195718681.

The spelling of 7942487 in words is "seven million, nine hundred forty-two thousand, four hundred eighty-seven".