1673957 has 6 divisors (see below), whose sum is σ = 1767078. Its totient is φ = 1585512.

The previous prime is 1673953. The next prime is 1673981. The reversal of 1673957 is 7593761.

It can be written as a sum of positive squares in only one way, i.e., 1256641 + 417316 = 1121^2 + 646^2 .

It is not a de Polignac number, because 1673957 - 2² = 1673953 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1673957.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1673951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1958 + ... + 2679.

It is an arithmetic number, because the mean of its divisors is an integer number (294513).

2^1673957 is an apocalyptic number.

It is an amenable number.

1673957 is a deficient number, since it is larger than the sum of its proper divisors (93121).

1673957 is an equidigital number, since it uses as much as digits as its factorization.

1673957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4675 (or 4656 counting only the distinct ones).

The product of its digits is 39690, while the sum is 38.

The square root of 1673957 is about 1293.8149017537. The cubic root of 1673957 is about 118.7357316190.

It can be divided in two parts, 1673 and 957, that multiplied together give a palindrome (1601061).

The spelling of 1673957 in words is "one million, six hundred seventy-three thousand, nine hundred fifty-seven".