2620487 has 4 divisors (see below), whose sum is σ = 2637336. Its totient is φ = 2603640.

The previous prime is 2620483. The next prime is 2620493. The reversal of 2620487 is 7840262.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7840262 = 2 ⋅3920131.

It is a cyclic number.

It is not a de Polignac number, because 2620487 - 2² = 2620483 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 (2620483) 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, 8189 + ... + 8502.

It is an arithmetic number, because the mean of its divisors is an integer number (659334).

2^2620487 is an apocalyptic number.

2620487 is a deficient number, since it is larger than the sum of its proper divisors (16849).

2620487 is a wasteful number, since it uses less digits than its factorization.

2620487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16848.

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 2620487 is about 1618.7918334363. The cubic root of 2620487 is about 137.8671093457.

The spelling of 2620487 in words is "two million, six hundred twenty thousand, four hundred eighty-seven".