7639968 has 48 divisors (see below), whose sum is σ = 22921920. Its totient is φ = 2182656.

The previous prime is 7639927. The next prime is 7639993. The reversal of 7639968 is 8699367.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×7639968² = 116738222082048, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5013 + ... + 6356.

It is an arithmetic number, because the mean of its divisors is an integer number (477540).

Almost surely, 2^7639968 is an apocalyptic number.

It is an amenable number.

7639968 is an abundant number, since it is smaller than the sum of its proper divisors (15281952).

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

7639968 is a wasteful number, since it uses less digits than its factorization.

7639968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11389 (or 11381 counting only the distinct ones).

The product of its digits is 489888, while the sum is 48.

The square root of 7639968 is about 2764.0492036141. The cubic root of 7639968 is about 196.9535651162.

It can be divided in two parts, 76399 and 68, that added together give a palindrome (76467).

The spelling of 7639968 in words is "seven million, six hundred thirty-nine thousand, nine hundred sixty-eight".