623464 has 8 divisors (see below), whose sum is σ = 1169010. Its totient is φ = 311728.

The previous prime is 623437. The next prime is 623477. The reversal of 623464 is 464326.

It can be written as a sum of positive squares in only one way, i.e., 550564 + 72900 = 742^2 + 270^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

623464 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 as a sum of consecutive naturals, namely, 38959 + ... + 38974.

2⁶²³⁴⁶⁴ is an apocalyptic number.

It is an amenable number.

623464 is a deficient number, since it is larger than the sum of its proper divisors (545546).

623464 is a wasteful number, since it uses less digits than its factorization.

623464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77939 (or 77935 counting only the distinct ones).

The product of its digits is 3456, while the sum is 25.

The square root of 623464 is about 789.5973657504. The cubic root of 623464 is about 85.4286992633.

The spelling of 623464 in words is "six hundred twenty-three thousand, four hundred sixty-four".