4070991 has 16 divisors (see below), whose sum is σ = 5700960. Its totient is φ = 2580480.

The previous prime is 4070981. The next prime is 4071017. The reversal of 4070991 is 1990704.

It is not a de Polignac number, because 4070991 - 2¹¹ = 4068943 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4070971) 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, 6031 + ... + 6671.

It is an arithmetic number, because the mean of its divisors is an integer number (356310).

Almost surely, 2^4070991 is an apocalyptic number.

4070991 is a deficient number, since it is larger than the sum of its proper divisors (1629969).

4070991 is a wasteful number, since it uses less digits than its factorization.

4070991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 746.

The product of its (nonzero) digits is 2268, while the sum is 30.

The square root of 4070991 is about 2017.6696954655. The cubic root of 4070991 is about 159.6736969711.

The spelling of 4070991 in words is "four million, seventy thousand, nine hundred ninety-one".