7650638 has 8 divisors (see below), whose sum is σ = 11786232. Its totient is φ = 3721896.

The previous prime is 7650631. The next prime is 7650647. The reversal of 7650638 is 8360567.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 7650598 and 7650607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7650631) 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, 51620 + ... + 51767.

It is an arithmetic number, because the mean of its divisors is an integer number (1473279).

Almost surely, 2^7650638 is an apocalyptic number.

7650638 is a deficient number, since it is larger than the sum of its proper divisors (4135594).

7650638 is a wasteful number, since it uses less digits than its factorization.

7650638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103426.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 7650638 is about 2765.9786694767. The cubic root of 7650638 is about 197.0452110926.

The spelling of 7650638 in words is "seven million, six hundred fifty thousand, six hundred thirty-eight".