97119749 has 2 divisors, whose sum is σ = 97119750. Its totient is φ = 97119748.

The previous prime is 97119739. The next prime is 97119769. The reversal of 97119749 is 94791179.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 90060100 + 7059649 = 9490^2 + 2657^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97119749 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97119739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48559874 + 48559875.

It is an arithmetic number, because the mean of its divisors is an integer number (48559875).

Almost surely, 2^97119749 is an apocalyptic number.

It is an amenable number.

97119749 is a deficient number, since it is larger than the sum of its proper divisors (1).

97119749 is an equidigital number, since it uses as much as digits as its factorization.

97119749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 142884, while the sum is 47.

The square root of 97119749 is about 9854.9352610760. The cubic root of 97119749 is about 459.6590873567.

The spelling of 97119749 in words is "ninety-seven million, one hundred nineteen thousand, seven hundred forty-nine".