721414 has 8 divisors (see below), whose sum is σ = 1088208. Its totient is φ = 358680.

The previous prime is 721397. The next prime is 721439. The reversal of 721414 is 414127.

721414 = T₆₉₂ + T₆₉₃ + T₆₉₄.

It is a sphenic number, since it is the product of 3 distinct primes.

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

It is a junction number, because it is equal to n+sod(n) for n = 721391 and 721400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 522 + ... + 1309.

It is an arithmetic number, because the mean of its divisors is an integer number (136026).

2⁷²¹⁴¹⁴ is an apocalyptic number.

721414 is the 694-th centered triangular number.

721414 is a deficient number, since it is larger than the sum of its proper divisors (366794).

721414 is a wasteful number, since it uses less digits than its factorization.

721414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2030.

The product of its digits is 224, while the sum is 19.

The square root of 721414 is about 849.3609362338. The cubic root of 721414 is about 89.6867297704.

The spelling of 721414 in words is "seven hundred twenty-one thousand, four hundred fourteen", and thus it is an iban number.