7898516 has 12 divisors (see below), whose sum is σ = 13965588. Its totient is φ = 3908352.

The previous prime is 7898479. The next prime is 7898519. The reversal of 7898516 is 6158987.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4080400 + 3818116 = 2020^2 + 1954^2 .

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7898519) 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, 9791 + ... + 10566.

It is an arithmetic number, because the mean of its divisors is an integer number (1163799).

Almost surely, 2^7898516 is an apocalyptic number.

It is an amenable number.

7898516 is a deficient number, since it is larger than the sum of its proper divisors (6067072).

7898516 is a wasteful number, since it uses less digits than its factorization.

7898516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20458 (or 20456 counting only the distinct ones).

The product of its digits is 120960, while the sum is 44.

The square root of 7898516 is about 2810.4298603594. The cubic root of 7898516 is about 199.1506985403.

The spelling of 7898516 in words is "seven million, eight hundred ninety-eight thousand, five hundred sixteen".