1672489 has 8 divisors (see below), whose sum is σ = 2058560. Its totient is φ = 1323216.

The previous prime is 1672487. The next prime is 1672499. The reversal of 1672489 is 9842761.

1672489 = 88² + 89² + ... + 178².

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1672489 - 2¹ = 1672487 is a prime.

It is a d-powerful number, because it can be written as 1 + 6⁶ + 7⁷ + 2¹³ + 4⁹ + 8³ + 9⁶ .

It is not an unprimeable number, because it can be changed into a prime (1672487) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9099 + ... + 9280.

It is an arithmetic number, because the mean of its divisors is an integer number (257320).

2^1672489 is an apocalyptic number.

It is an amenable number.

1672489 is a deficient number, since it is larger than the sum of its proper divisors (386071).

1672489 is a wasteful number, since it uses less digits than its factorization.

1672489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18399.

The product of its digits is 24192, while the sum is 37.

The square root of 1672489 is about 1293.2474627851. The cubic root of 1672489 is about 118.7010124811.

The spelling of 1672489 in words is "one million, six hundred seventy-two thousand, four hundred eighty-nine".