1672573 has 4 divisors (see below), whose sum is σ = 1911520. Its totient is φ = 1433628.

The previous prime is 1672553. The next prime is 1672603. The reversal of 1672573 is 3752761.

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, and also an emirpimes, since its reverse is a distinct semiprime: 3752761 = 109 ⋅34429.

It is a de Polignac number, because none of the positive numbers 2^k-1672573 is a prime.

It is a d-powerful number, because it can be written as 1 + 6² + 7 + 2⁵ + 5⁷ + 7² + 3¹³ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1672523) 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, 119463 + ... + 119476.

It is an arithmetic number, because the mean of its divisors is an integer number (477880).

2^1672573 is an apocalyptic number.

It is an amenable number.

1672573 is a deficient number, since it is larger than the sum of its proper divisors (238947).

1672573 is an equidigital number, since it uses as much as digits as its factorization.

1672573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238946.

The product of its digits is 8820, while the sum is 31.

The square root of 1672573 is about 1293.2799387604. The cubic root of 1672573 is about 118.7029996826.

The spelling of 1672573 in words is "one million, six hundred seventy-two thousand, five hundred seventy-three".