1672505 has 8 divisors (see below), whose sum is σ = 2020032. Its totient is φ = 1329328.

The previous prime is 1672501. The next prime is 1672507. The reversal of 1672505 is 5052761.

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 1672505 - 2² = 1672501 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (1672501) 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, 167 + ... + 1836.

It is an arithmetic number, because the mean of its divisors is an integer number (252504).

2^1672505 is an apocalyptic number.

It is an amenable number.

1672505 is a deficient number, since it is larger than the sum of its proper divisors (347527).

1672505 is a wasteful number, since it uses less digits than its factorization.

1672505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2175.

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 1672505 is about 1293.2536487480. The cubic root of 1672505 is about 118.7013910008.

The spelling of 1672505 in words is "one million, six hundred seventy-two thousand, five hundred five".