7698913 has 2 divisors, whose sum is σ = 7698914. Its totient is φ = 7698912.

The previous prime is 7698893. The next prime is 7698917. The reversal of 7698913 is 3198967.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7273809 + 425104 = 2697^2 + 652^2 .

It is an emirp because it is prime and its reverse (3198967) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7698913 - 2¹³ = 7690721 is a prime.

It is a super-2 number, since 2×7698913² = 118546522763138, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7698913.

It is not a weakly prime, because it can be changed into another prime (7698917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3849456 + 3849457.

It is an arithmetic number, because the mean of its divisors is an integer number (3849457).

Almost surely, 2^7698913 is an apocalyptic number.

It is an amenable number.

7698913 is a deficient number, since it is larger than the sum of its proper divisors (1).

7698913 is an equidigital number, since it uses as much as digits as its factorization.

7698913 is an evil number, because the sum of its binary digits is even.

The product of its digits is 81648, while the sum is 43.

The square root of 7698913 is about 2774.6915143850. The cubic root of 7698913 is about 197.4587896712.

It can be divided in two parts, 76 and 98913, that added together give a palindrome (98989).

The spelling of 7698913 in words is "seven million, six hundred ninety-eight thousand, nine hundred thirteen".