7898531 has 2 divisors, whose sum is σ = 7898532. Its totient is φ = 7898530.

The previous prime is 7898519. The next prime is 7898533. The reversal of 7898531 is 1358987.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7898531 is a prime.

It is a super-2 number, since 2×7898531² = 124773583915922, which contains 22 as substring.

Together with 7898533, it forms a pair of twin primes.

It is a Chen prime.

It is a plaindrome in base 12.

It is not a weakly prime, because it can be changed into another prime (7898533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3949265 + 3949266.

It is an arithmetic number, because the mean of its divisors is an integer number (3949266).

Almost surely, 2^7898531 is an apocalyptic number.

7898531 is a deficient number, since it is larger than the sum of its proper divisors (1).

7898531 is an equidigital number, since it uses as much as digits as its factorization.

7898531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 60480, while the sum is 41.

The square root of 7898531 is about 2810.4325289891. The cubic root of 7898531 is about 199.1508246086.

The spelling of 7898531 in words is "seven million, eight hundred ninety-eight thousand, five hundred thirty-one".