1071906 has 32 divisors (see below), whose sum is σ = 2376000. Its totient is φ = 319680.

The previous prime is 1071899. The next prime is 1071907. The reversal of 1071906 is 6091701.

It is a super-2 number, since 2×1071906² = 2297964945672, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1071907) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7120 + ... + 7268.

It is an arithmetic number, because the mean of its divisors is an integer number (74250).

2^1071906 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1071906, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1188000).

1071906 is an abundant number, since it is smaller than the sum of its proper divisors (1304094).

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

1071906 is a wasteful number, since it uses less digits than its factorization.

1071906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274.

The product of its (nonzero) digits is 378, while the sum is 24.

The square root of 1071906 is about 1035.3289332381. The cubic root of 1071906 is about 102.3416074353.

The spelling of 1071906 in words is "one million, seventy-one thousand, nine hundred six".