661462 has 4 divisors (see below), whose sum is σ = 992196. Its totient is φ = 330730.

The previous prime is 661459. The next prime is 661477. The reversal of 661462 is 264166.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165364 + ... + 165367.

It is an arithmetic number, because the mean of its divisors is an integer number (248049).

2⁶⁶¹⁴⁶² is an apocalyptic number.

661462 is a deficient number, since it is larger than the sum of its proper divisors (330734).

661462 is a wasteful number, since it uses less digits than its factorization.

661462 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330733.

The product of its digits is 1728, while the sum is 25.

The square root of 661462 is about 813.3031415161. The cubic root of 661462 is about 87.1301175372.

The spelling of 661462 in words is "six hundred sixty-one thousand, four hundred sixty-two".