97019389 has 2 divisors, whose sum is σ = 97019390. Its totient is φ = 97019388.

The previous prime is 97019387. The next prime is 97019477. The reversal of 97019389 is 98391079.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 89151364 + 7868025 = 9442^2 + 2805^2 .

It is a cyclic number.

It is not a de Polignac number, because 97019389 - 2¹ = 97019387 is a prime.

Together with 97019387, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97019383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48509694 + 48509695.

It is an arithmetic number, because the mean of its divisors is an integer number (48509695).

Almost surely, 2^97019389 is an apocalyptic number.

It is an amenable number.

97019389 is a deficient number, since it is larger than the sum of its proper divisors (1).

97019389 is an equidigital number, since it uses as much as digits as its factorization.

97019389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 122472, while the sum is 46.

The square root of 97019389 is about 9849.8420799523. The cubic root of 97019389 is about 459.5007011522.

The spelling of 97019389 in words is "ninety-seven million, nineteen thousand, three hundred eighty-nine".