1672611 has 4 divisors (see below), whose sum is σ = 2230152. Its totient is φ = 1115072.

The previous prime is 1672609. The next prime is 1672631. The reversal of 1672611 is 1162761.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1162761 = 3 ⋅387587.

It is a cyclic number.

It is not a de Polignac number, because 1672611 - 2¹ = 1672609 is a prime.

It is an Ulam number.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (1672631) 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, 278766 + ... + 278771.

It is an arithmetic number, because the mean of its divisors is an integer number (557538).

2^1672611 is an apocalyptic number.

1672611 is a deficient number, since it is larger than the sum of its proper divisors (557541).

1672611 is an equidigital number, since it uses as much as digits as its factorization.

1672611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557540.

The product of its digits is 504, while the sum is 24.

The square root of 1672611 is about 1293.2946300051. The cubic root of 1672611 is about 118.7038986329.

It can be divided in two parts, 16 and 72611, that added together give a palindrome (72627).

The spelling of 1672611 in words is "one million, six hundred seventy-two thousand, six hundred eleven".