98970691 has 2 divisors, whose sum is σ = 98970692. Its totient is φ = 98970690.

The previous prime is 98970637. The next prime is 98970721. The reversal of 98970691 is 19607989.

It is a strong prime.

It is an emirp because it is prime and its reverse (19607989) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 98970691 - 2¹¹ = 98968643 is a prime.

It is not a weakly prime, because it can be changed into another prime (98970191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49485345 + 49485346.

It is an arithmetic number, because the mean of its divisors is an integer number (49485346).

Almost surely, 2^98970691 is an apocalyptic number.

98970691 is a deficient number, since it is larger than the sum of its proper divisors (1).

98970691 is an equidigital number, since it uses as much as digits as its factorization.

98970691 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 244944, while the sum is 49.

The square root of 98970691 is about 9948.4014293755. The cubic root of 98970691 is about 462.5608447831.

The spelling of 98970691 in words is "ninety-eight million, nine hundred seventy thousand, six hundred ninety-one".