7898634 has 20 divisors (see below), whose sum is σ = 17699154. Its totient is φ = 2632824.

The previous prime is 7898621. The next prime is 7898641. The reversal of 7898634 is 4368987.

It is a happy number.

7898634 is a `hidden beast` number, since 7 + 8 + 9 + 8 + 634 = 666.

It can be written as a sum of positive squares in only one way, i.e., 7535025 + 363609 = 2745^2 + 603^2 .

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 7898634.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 24217 + ... + 24540.

Almost surely, 2^7898634 is an apocalyptic number.

7898634 is an abundant number, since it is smaller than the sum of its proper divisors (9800520).

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

7898634 is a wasteful number, since it uses less digits than its factorization.

7898634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48771 (or 48762 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 7898634 is about 2810.4508535109. The cubic root of 7898634 is about 199.1516902736.

The spelling of 7898634 in words is "seven million, eight hundred ninety-eight thousand, six hundred thirty-four".