1672385 has 16 divisors (see below), whose sum is σ = 2358720. Its totient is φ = 1122240.

The previous prime is 1672381. The next prime is 1672393. The reversal of 1672385 is 5832761.

It is a happy number.

It is not a de Polignac number, because 1672385 - 2² = 1672381 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 (1672381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 455 + ... + 1884.

It is an arithmetic number, because the mean of its divisors is an integer number (147420).

2^1672385 is an apocalyptic number.

It is an amenable number.

1672385 is a deficient number, since it is larger than the sum of its proper divisors (686335).

1672385 is a wasteful number, since it uses less digits than its factorization.

1672385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2368.

The product of its digits is 10080, while the sum is 32.

The square root of 1672385 is about 1293.2072533047. The cubic root of 1672385 is about 118.6985520442.

It can be divided in two parts, 167 and 2385, that added together give a palindrome (2552).

The spelling of 1672385 in words is "one million, six hundred seventy-two thousand, three hundred eighty-five".