7850506 has 4 divisors (see below), whose sum is σ = 11775762. Its totient is φ = 3925252.

The previous prime is 7850489. The next prime is 7850509. The reversal of 7850506 is 6050587.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 4372281 + 3478225 = 2091^2 + 1865^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (7850509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1962625 + ... + 1962628.

Almost surely, 2^7850506 is an apocalyptic number.

7850506 is a deficient number, since it is larger than the sum of its proper divisors (3925256).

7850506 is a wasteful number, since it uses less digits than its factorization.

7850506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3925255.

The product of its (nonzero) digits is 8400, while the sum is 31.

The square root of 7850506 is about 2801.8754433415. The cubic root of 7850506 is about 198.7463752091.

The spelling of 7850506 in words is "seven million, eight hundred fifty thousand, five hundred six".