2642487 has 8 divisors (see below), whose sum is σ = 3556080. Its totient is φ = 1745280.

The previous prime is 2642483. The next prime is 2642513. The reversal of 2642487 is 7842462.

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

It is not a de Polignac number, because 2642487 - 2² = 2642483 is a prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 2¹⁹ + 6³ + 4⁶ + 2²¹ + 4⁷ + 8 + 7³ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2642483) 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, 3714 + ... + 4367.

It is an arithmetic number, because the mean of its divisors is an integer number (444510).

2^2642487 is an apocalyptic number.

2642487 is a deficient number, since it is larger than the sum of its proper divisors (913593).

2642487 is a wasteful number, since it uses less digits than its factorization.

2642487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8193.

The product of its digits is 21504, while the sum is 33.

The square root of 2642487 is about 1625.5728221153. The cubic root of 2642487 is about 138.2518505312.

The spelling of 2642487 in words is "two million, six hundred forty-two thousand, four hundred eighty-seven".