1674745 has 8 divisors (see below), whose sum is σ = 2097216. Its totient is φ = 1281456.

The previous prime is 1674737. The next prime is 1674763. The reversal of 1674745 is 5474761.

It is a happy number.

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 1674745 - 2³ = 1674737 is a prime.

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

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 1674745.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7167 + ... + 7396.

It is an arithmetic number, because the mean of its divisors is an integer number (262152).

2^1674745 is an apocalyptic number.

It is an amenable number.

1674745 is a deficient number, since it is larger than the sum of its proper divisors (422471).

1674745 is a wasteful number, since it uses less digits than its factorization.

1674745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14591.

The product of its digits is 23520, while the sum is 34.

The square root of 1674745 is about 1294.1193917101. The cubic root of 1674745 is about 118.7543599507.

Subtracting from 1674745 its product of digits (23520), we obtain a square (1651225 = 1285²).

The spelling of 1674745 in words is "one million, six hundred seventy-four thousand, seven hundred forty-five".