97180829 has 2 divisors, whose sum is σ = 97180830. Its totient is φ = 97180828.

The previous prime is 97180793. The next prime is 97180841. The reversal of 97180829 is 92808179.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79245604 + 17935225 = 8902^2 + 4235^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97180829 is a prime.

It is a super-2 number, since 2×97180829² = 18888227050254482, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 97180829.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97180849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48590414 + 48590415.

It is an arithmetic number, because the mean of its divisors is an integer number (48590415).

Almost surely, 2^97180829 is an apocalyptic number.

It is an amenable number.

97180829 is a deficient number, since it is larger than the sum of its proper divisors (1).

97180829 is an equidigital number, since it uses as much as digits as its factorization.

97180829 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 44.

The square root of 97180829 is about 9858.0337288934. The cubic root of 97180829 is about 459.7554292220.

The spelling of 97180829 in words is "ninety-seven million, one hundred eighty thousand, eight hundred twenty-nine".