2620971 has 8 divisors (see below), whose sum is σ = 3882960. Its totient is φ = 1747296.

The previous prime is 2620967. The next prime is 2620999. The reversal of 2620971 is 1790262.

It is not a de Polignac number, because 2620971 - 2² = 2620967 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 97073 = 2620971 / (2 + 6 + 2 + 0 + 9 + 7 + 1).

It is not an unprimeable number, because it can be changed into a prime (2620901) 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, 48510 + ... + 48563.

It is an arithmetic number, because the mean of its divisors is an integer number (485370).

2^2620971 is an apocalyptic number.

2620971 is a deficient number, since it is larger than the sum of its proper divisors (1261989).

2620971 is an equidigital number, since it uses as much as digits as its factorization.

2620971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97082 (or 97076 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 2620971 is about 1618.9413207402. The cubic root of 2620971 is about 137.8755967723.

The spelling of 2620971 in words is "two million, six hundred twenty thousand, nine hundred seventy-one".