2971406 has 4 divisors (see below), whose sum is σ = 4457112. Its totient is φ = 1485702.

The previous prime is 2971399. The next prime is 2971459. The reversal of 2971406 is 6041792.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 742850 + ... + 742853.

It is an arithmetic number, because the mean of its divisors is an integer number (1114278).

2^2971406 is an apocalyptic number.

2971406 is a deficient number, since it is larger than the sum of its proper divisors (1485706).

2971406 is a wasteful number, since it uses less digits than its factorization.

2971406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1485705.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 2971406 is about 1723.7766676690. The cubic root of 2971406 is about 143.7652747474.

The spelling of 2971406 in words is "two million, nine hundred seventy-one thousand, four hundred six".