7090638 has 8 divisors (see below), whose sum is σ = 14181288. Its totient is φ = 2363544.

The previous prime is 7090631. The next prime is 7090639. The reversal of 7090638 is 8360907.

It is a happy number.

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

7090638 is an admirable number.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 7090599 and 7090608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7090631) 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, 590881 + ... + 590892.

It is an arithmetic number, because the mean of its divisors is an integer number (1772661).

Almost surely, 2^7090638 is an apocalyptic number.

7090638 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

7090638 is a wasteful number, since it uses less digits than its factorization.

7090638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1181778.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 7090638 is about 2662.8251914086. The cubic root of 7090638 is about 192.1152194713.

The spelling of 7090638 in words is "seven million, ninety thousand, six hundred thirty-eight".