1490693 has 4 divisors (see below), whose sum is σ = 1531020. Its totient is φ = 1450368.

The previous prime is 1490677. The next prime is 1490701. The reversal of 1490693 is 3960941.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1399489 + 91204 = 1183^2 + 302^2 .

It is a cyclic number.

It is not a de Polignac number, because 1490693 - 2⁴ = 1490677 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a zygodrome in base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1490603) 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, 20108 + ... + 20181.

It is an arithmetic number, because the mean of its divisors is an integer number (382755).

2^1490693 is an apocalyptic number.

It is an amenable number.

1490693 is a deficient number, since it is larger than the sum of its proper divisors (40327).

1490693 is an equidigital number, since it uses as much as digits as its factorization.

1490693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40326.

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 1490693 is about 1220.9393924352. The cubic root of 1490693 is about 114.2341805605.

The spelling of 1490693 in words is "one million, four hundred ninety thousand, six hundred ninety-three".