721462 has 16 divisors (see below), whose sum is σ = 1280160. Its totient is φ = 298368.

The previous prime is 721451. The next prime is 721481. The reversal of 721462 is 264127.

It is a congruent number.

It is an unprimeable number.

721462 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 483 + ... + 1294.

It is an arithmetic number, because the mean of its divisors is an integer number (80010).

2⁷²¹⁴⁶² is an apocalyptic number.

721462 is a deficient number, since it is larger than the sum of its proper divisors (558698).

721462 is a wasteful number, since it uses less digits than its factorization.

721462 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1815.

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

The square root of 721462 is about 849.3891923023. The cubic root of 721462 is about 89.6887188583.

Adding to 721462 its reverse (264127), we get a palindrome (985589).

The spelling of 721462 in words is "seven hundred twenty-one thousand, four hundred sixty-two".