97098155437 has 4 divisors (see below), whose sum is σ = 97408373500. Its totient is φ = 96787937376.

The previous prime is 97098155423. The next prime is 97098155449. The reversal of 97098155437 is 73455189079.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 73455189079 = 23 ⋅3193703873.

It can be written as a sum of positive squares in 2 ways, for example, as 10905416041 + 86192739396 = 104429^2 + 293586^2 .

It is a cyclic number.

It is not a de Polignac number, because 97098155437 - 2¹⁹ = 97097631149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97098153437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 155108562 + ... + 155109187.

It is an arithmetic number, because the mean of its divisors is an integer number (24352093375).

Almost surely, 2^97098155437 is an apocalyptic number.

It is an amenable number.

97098155437 is a deficient number, since it is larger than the sum of its proper divisors (310218063).

97098155437 is a wasteful number, since it uses less digits than its factorization.

97098155437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310218062.

The product of its (nonzero) digits is 9525600, while the sum is 58.

The spelling of 97098155437 in words is "ninety-seven billion, ninety-eight million, one hundred fifty-five thousand, four hundred thirty-seven".