1673407 has 2 divisors, whose sum is σ = 1673408. Its totient is φ = 1673406.

The previous prime is 1673401. The next prime is 1673437. The reversal of 1673407 is 7043761.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1673407 - 2⁷ = 1673279 is a prime.

It is a Chen prime.

1673407 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1673401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 836703 + 836704.

It is an arithmetic number, because the mean of its divisors is an integer number (836704).

2^1673407 is an apocalyptic number.

1673407 is a deficient number, since it is larger than the sum of its proper divisors (1).

1673407 is an equidigital number, since it uses as much as digits as its factorization.

1673407 is an evil number, because the sum of its binary digits is even.

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

The square root of 1673407 is about 1293.6023345681. The cubic root of 1673407 is about 118.7227261463.

It can be divided in two parts, 1673 and 407, that added together give a triangular number (2080 = T₆₄).

The spelling of 1673407 in words is "one million, six hundred seventy-three thousand, four hundred seven".