1434721 has 4 divisors (see below), whose sum is σ = 1444500. Its totient is φ = 1424944.

The previous prime is 1434707. The next prime is 1434731. The reversal of 1434721 is 1274341.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1274341 = 59 ⋅21599.

It can be written as a sum of positive squares in 2 ways, for example, as 893025 + 541696 = 945^2 + 736^2 .

It is a cyclic number.

It is not a de Polignac number, because 1434721 - 2⁷ = 1434593 is a prime.

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

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1434692 and 1434701.

It is not an unprimeable number, because it can be changed into a prime (1434731) 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, 4666 + ... + 4963.

It is an arithmetic number, because the mean of its divisors is an integer number (361125).

2^1434721 is an apocalyptic number.

It is an amenable number.

1434721 is a deficient number, since it is larger than the sum of its proper divisors (9779).

1434721 is an equidigital number, since it uses as much as digits as its factorization.

1434721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9778.

The product of its digits is 672, while the sum is 22.

The square root of 1434721 is about 1197.7983970602. The cubic root of 1434721 is about 112.7861620182.

The spelling of 1434721 in words is "one million, four hundred thirty-four thousand, seven hundred twenty-one".