1672723 has 8 divisors (see below), whose sum is σ = 1812608. Its totient is φ = 1534464.

The previous prime is 1672663. The next prime is 1672747. The reversal of 1672723 is 3272761.

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 1672723 - 2¹⁷ = 1541651 is a prime.

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

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1672691 and 1672700.

It is not an unprimeable number, because it can be changed into a prime (1672753) 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, 2611 + ... + 3187.

It is an arithmetic number, because the mean of its divisors is an integer number (226576).

2^1672723 is an apocalyptic number.

1672723 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1672723 is a deficient number, since it is larger than the sum of its proper divisors (139885).

1672723 is a wasteful number, since it uses less digits than its factorization.

1672723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 813.

The product of its digits is 3528, while the sum is 28.

The square root of 1672723 is about 1293.3379295451. The cubic root of 1672723 is about 118.7065480913.

The spelling of 1672723 in words is "one million, six hundred seventy-two thousand, seven hundred twenty-three".