7641388 has 12 divisors (see below), whose sum is σ = 13734112. Its totient is φ = 3717360.

The previous prime is 7641383. The next prime is 7641427. The reversal of 7641388 is 8831467.

It is a happy number.

7641388 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is not an unprimeable number, because it can be changed into a prime (7641383) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 25668 + ... + 25963.

Almost surely, 2^7641388 is an apocalyptic number.

It is an amenable number.

7641388 is a deficient number, since it is larger than the sum of its proper divisors (6092724).

7641388 is a wasteful number, since it uses less digits than its factorization.

7641388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51672 (or 51670 counting only the distinct ones).

The product of its digits is 32256, while the sum is 37.

The square root of 7641388 is about 2764.3060612023. The cubic root of 7641388 is about 196.9657665957.

The spelling of 7641388 in words is "seven million, six hundred forty-one thousand, three hundred eighty-eight".