2691673 has 4 divisors (see below), whose sum is σ = 2833360. Its totient is φ = 2549988.

The previous prime is 2691659. The next prime is 2691677. The reversal of 2691673 is 3761962.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2691673 - 2⁵ = 2691641 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (2691677) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70815 + ... + 70852.

It is an arithmetic number, because the mean of its divisors is an integer number (708340).

2^2691673 is an apocalyptic number.

It is an amenable number.

2691673 is a deficient number, since it is larger than the sum of its proper divisors (141687).

2691673 is a wasteful number, since it uses less digits than its factorization.

2691673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141686.

The product of its digits is 13608, while the sum is 34.

The square root of 2691673 is about 1640.6318904617. The cubic root of 2691673 is about 139.1043675561.

It can be divided in two parts, 2691 and 673, that added together give a square (3364 = 58²).

The spelling of 2691673 in words is "two million, six hundred ninety-one thousand, six hundred seventy-three".