2620317 has 8 divisors (see below), whose sum is σ = 3992896. Its totient is φ = 1497312.

The previous prime is 2620313. The next prime is 2620339. The reversal of 2620317 is 7130262.

It is a happy number.

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

It is not a de Polignac number, because 2620317 - 2² = 2620313 is a prime.

It is a super-2 number, since 2×2620317² = 13732122360978, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 124777 = 2620317 / (2 + 6 + 2 + 0 + 3 + 1 + 7).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2620293 and 2620302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2620313) 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, 62368 + ... + 62409.

It is an arithmetic number, because the mean of its divisors is an integer number (499112).

2^2620317 is an apocalyptic number.

It is an amenable number.

2620317 is a deficient number, since it is larger than the sum of its proper divisors (1372579).

2620317 is a wasteful number, since it uses less digits than its factorization.

2620317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124787.

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 2620317 is about 1618.7393242891. The cubic root of 2620317 is about 137.8641279768.

Adding to 2620317 its reverse (7130262), we get a palindrome (9750579).

The spelling of 2620317 in words is "two million, six hundred twenty thousand, three hundred seventeen".