670464 has 72 divisors (see below), whose sum is σ = 2003120. Its totient is φ = 221184.

The previous prime is 670457. The next prime is 670471. The reversal of 670464 is 464076.

It is an interprime number because it is at equal distance from previous prime (670457) and next prime (670471).

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6864 + ... + 6960.

2⁶⁷⁰⁴⁶⁴ is an apocalyptic number.

670464 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 670464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1001560).

670464 is an abundant number, since it is smaller than the sum of its proper divisors (1332656).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

670464 is an equidigital number, since it uses as much as digits as its factorization.

670464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122 (or 102 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 670464 is about 818.8186612431. The cubic root of 670464 is about 87.5235963572.

The spelling of 670464 in words is "six hundred seventy thousand, four hundred sixty-four".