1672537 has 4 divisors (see below), whose sum is σ = 1745280. Its totient is φ = 1599796.

The previous prime is 1672529. The next prime is 1672549. The reversal of 1672537 is 7352761.

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: 7352761 = 13 ⋅565597.

It is a cyclic number.

It is not a de Polignac number, because 1672537 - 2³ = 1672529 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1672499 and 1672508.

It is not an unprimeable number, because it can be changed into a prime (1672507) 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, 36337 + ... + 36382.

It is an arithmetic number, because the mean of its divisors is an integer number (436320).

2^1672537 is an apocalyptic number.

It is an amenable number.

1672537 is a deficient number, since it is larger than the sum of its proper divisors (72743).

1672537 is an equidigital number, since it uses as much as digits as its factorization.

1672537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72742.

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

The square root of 1672537 is about 1293.2660205851. The cubic root of 1672537 is about 118.7021480330.

It can be divided in two parts, 1672 and 537, that added together give a square (2209 = 47²).

The spelling of 1672537 in words is "one million, six hundred seventy-two thousand, five hundred thirty-seven".