2661371 has 2 divisors, whose sum is σ = 2661372. Its totient is φ = 2661370.

The previous prime is 2661341. The next prime is 2661391. The reversal of 2661371 is 1731662.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2661371 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2661371.

It is not a weakly prime, because it can be changed into another prime (2661331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1330685 + 1330686.

It is an arithmetic number, because the mean of its divisors is an integer number (1330686).

2^2661371 is an apocalyptic number.

2661371 is a deficient number, since it is larger than the sum of its proper divisors (1).

2661371 is an equidigital number, since it uses as much as digits as its factorization.

2661371 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1512, while the sum is 26.

The square root of 2661371 is about 1631.3708959032. The cubic root of 2661371 is about 138.5803987837.

The spelling of 2661371 in words is "two million, six hundred sixty-one thousand, three hundred seventy-one".