1674749 has 4 divisors (see below), whose sum is σ = 1688064. Its totient is φ = 1661436.

The previous prime is 1674737. The next prime is 1674763. The reversal of 1674749 is 9474761.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9474761 = 149 ⋅63589.

It is a cyclic number.

It is not a de Polignac number, because 1674749 - 2⁴ = 1674733 is a prime.

It is an Ulam number.

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1674769) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6467 + ... + 6720.

It is an arithmetic number, because the mean of its divisors is an integer number (422016).

2^1674749 is an apocalyptic number.

It is an amenable number.

1674749 is a deficient number, since it is larger than the sum of its proper divisors (13315).

1674749 is a wasteful number, since it uses less digits than its factorization.

1674749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13314.

The product of its digits is 42336, while the sum is 38.

The square root of 1674749 is about 1294.1209371616. The cubic root of 1674749 is about 118.7544544959.

The spelling of 1674749 in words is "one million, six hundred seventy-four thousand, seven hundred forty-nine".