7663424 has 28 divisors (see below), whose sum is σ = 15735300. Its totient is φ = 3698688.

The previous prime is 7663421. The next prime is 7663427. The reversal of 7663424 is 4243667.

It is an interprime number because it is at equal distance from previous prime (7663421) and next prime (7663427).

It can be written as a sum of positive squares in 2 ways, for example, as 4129024 + 3534400 = 2032^2 + 1880^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7663421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 209 + ... + 3920.

It is an arithmetic number, because the mean of its divisors is an integer number (561975).

Almost surely, 2^7663424 is an apocalyptic number.

It is an amenable number.

7663424 is an abundant number, since it is smaller than the sum of its proper divisors (8071876).

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

7663424 is a wasteful number, since it uses less digits than its factorization.

7663424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4170 (or 4160 counting only the distinct ones).

The product of its digits is 24192, while the sum is 32.

The square root of 7663424 is about 2768.2890022539. The cubic root of 7663424 is about 197.1549194968.

The spelling of 7663424 in words is "seven million, six hundred sixty-three thousand, four hundred twenty-four".