663762 has 32 divisors (see below), whose sum is σ = 1477440. Its totient is φ = 197120.

The previous prime is 663737. The next prime is 663763. The reversal of 663762 is 267366.

It is a nialpdrome in base 7.

It is not an unprimeable number, because it can be changed into a prime (663763) by changing a digit.

663762 is an untouchable number, because it is not equal to the sum of proper divisors of any 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 15 ways as a sum of consecutive naturals, for example, 5818 + ... + 5930.

It is an arithmetic number, because the mean of its divisors is an integer number (46170).

2⁶⁶³⁷⁶² is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 663762, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (738720).

663762 is an abundant number, since it is smaller than the sum of its proper divisors (813678).

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

663762 is a wasteful number, since it uses less digits than its factorization.

663762 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218.

The product of its digits is 9072, while the sum is 30.

The square root of 663762 is about 814.7159014037. The cubic root of 663762 is about 87.2309887616.

It can be divided in two parts, 66 and 3762, that added together give a triangular number (3828 = T₈₇).

The spelling of 663762 in words is "six hundred sixty-three thousand, seven hundred sixty-two".