7774138 has 8 divisors (see below), whose sum is σ = 12168288. Its totient is φ = 3718044.

The previous prime is 7774127. The next prime is 7774141. The reversal of 7774138 is 8314777.

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

It is a junction number, because it is equal to n+sod(n) for n = 7774097 and 7774106.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84456 + ... + 84547.

It is an arithmetic number, because the mean of its divisors is an integer number (1521036).

Almost surely, 2^7774138 is an apocalyptic number.

7774138 is a deficient number, since it is larger than the sum of its proper divisors (4394150).

7774138 is a wasteful number, since it uses less digits than its factorization.

7774138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169028.

The product of its digits is 32928, while the sum is 37.

The square root of 7774138 is about 2788.2141237717. The cubic root of 7774138 is about 198.0998204292.

The spelling of 7774138 in words is "seven million, seven hundred seventy-four thousand, one hundred thirty-eight".