1672431 has 8 divisors (see below), whose sum is σ = 2284464. Its totient is φ = 1087680.

The previous prime is 1672423. The next prime is 1672441. The reversal of 1672431 is 1342761.

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

It is not a de Polignac number, because 1672431 - 2³ = 1672423 is a prime.

It is a super-2 number, since 2×1672431² = 5594050899522, which contains 22 as substring.

1672431 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1672421) 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, 6676 + ... + 6921.

It is an arithmetic number, because the mean of its divisors is an integer number (285558).

2^1672431 is an apocalyptic number.

1672431 is a deficient number, since it is larger than the sum of its proper divisors (612033).

1672431 is a wasteful number, since it uses less digits than its factorization.

1672431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13641.

The product of its digits is 1008, while the sum is 24.

The square root of 1672431 is about 1293.2250384214. The cubic root of 1672431 is about 118.6996403269.

The spelling of 1672431 in words is "one million, six hundred seventy-two thousand, four hundred thirty-one".