1493871 has 4 divisors (see below), whose sum is σ = 1991832. Its totient is φ = 995912.

The previous prime is 1493867. The next prime is 1493879. The reversal of 1493871 is 1783941.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1493871 - 2² = 1493867 is a prime.

It is a D-number.

1493871 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1493879) 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, 248976 + ... + 248981.

It is an arithmetic number, because the mean of its divisors is an integer number (497958).

2^1493871 is an apocalyptic number.

1493871 is a deficient number, since it is larger than the sum of its proper divisors (497961).

1493871 is an equidigital number, since it uses as much as digits as its factorization.

1493871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497960.

The product of its digits is 6048, while the sum is 33.

The square root of 1493871 is about 1222.2401564341. The cubic root of 1493871 is about 114.3153013426.

The spelling of 1493871 in words is "one million, four hundred ninety-three thousand, eight hundred seventy-one".