2971605 has 48 divisors (see below), whose sum is σ = 5975424. Its totient is φ = 1249920.

The previous prime is 2971603. The next prime is 2971607. The reversal of 2971605 is 5061792.

It is an interprime number because it is at equal distance from previous prime (2971603) and next prime (2971607).

It is not a de Polignac number, because 2971605 - 2¹ = 2971603 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2971603) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9400 + ... + 9710.

It is an arithmetic number, because the mean of its divisors is an integer number (124488).

2^2971605 is an apocalyptic number.

It is an amenable number.

2971605 is an abundant number, since it is smaller than the sum of its proper divisors (3003819).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2971605 is a wasteful number, since it uses less digits than its factorization.

2971605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346 (or 339 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 30.

The square root of 2971605 is about 1723.8343887973. The cubic root of 2971605 is about 143.7684840756.

The spelling of 2971605 in words is "two million, nine hundred seventy-one thousand, six hundred five".