2072691 has 48 divisors (see below), whose sum is σ = 3594240. Its totient is φ = 1140480.

The previous prime is 2072687. The next prime is 2072699. The reversal of 2072691 is 1962702.

It is not a de Polignac number, because 2072691 - 2² = 2072687 is a prime.

2072691 is a Rhonda number in base 6.

2072691 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2072699) 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, 66846 + ... + 66876.

It is an arithmetic number, because the mean of its divisors is an integer number (74880).

2^2072691 is an apocalyptic number.

2072691 is a deficient number, since it is larger than the sum of its proper divisors (1521549).

2072691 is a wasteful number, since it uses less digits than its factorization.

2072691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96 (or 93 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 2072691 is about 1439.6843404024. The cubic root of 2072691 is about 127.5003921557.

The spelling of 2072691 in words is "two million, seventy-two thousand, six hundred ninety-one".