1672231 has 8 divisors (see below), whose sum is σ = 1834128. Its totient is φ = 1512000.

The previous prime is 1672219. The next prime is 1672243. The reversal of 1672231 is 1322761.

It is an interprime number because it is at equal distance from previous prime (1672219) and next prime (1672243).

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

It is a 6-Lehmer number, since φ(1672231) divides (1672231-1)⁶.

It is a cyclic number.

It is not a de Polignac number, because 1672231 - 2⁵ = 1672199 is a prime.

It is a super-2 number, since 2×1672231² = 5592713034722, which contains 22 as substring.

It is a Duffinian number.

1672231 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1672271) 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, 2821 + ... + 3361.

It is an arithmetic number, because the mean of its divisors is an integer number (229266).

2^1672231 is an apocalyptic number.

1672231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1672231 is a deficient number, since it is larger than the sum of its proper divisors (161897).

1672231 is a wasteful number, since it uses less digits than its factorization.

1672231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 833.

The product of its digits is 504, while the sum is 22.

The square root of 1672231 is about 1293.1477100471. The cubic root of 1672231 is about 118.6949085175.

Adding to 1672231 its reverse (1322761), we get a palindrome (2994992).

The spelling of 1672231 in words is "one million, six hundred seventy-two thousand, two hundred thirty-one".