97726249 has 2 divisors, whose sum is σ = 97726250. Its totient is φ = 97726248.

The previous prime is 97726231. The next prime is 97726271. The reversal of 97726249 is 94262779.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 93026025 + 4700224 = 9645^2 + 2168^2 .

It is a cyclic number.

It is not a de Polignac number, because 97726249 - 2⁷ = 97726121 is a prime.

It is a super-2 number, since 2×97726249² = 19100839487220002, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 97726199 and 97726208.

It is not a weakly prime, because it can be changed into another prime (97726649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48863124 + 48863125.

It is an arithmetic number, because the mean of its divisors is an integer number (48863125).

Almost surely, 2^97726249 is an apocalyptic number.

It is an amenable number.

97726249 is a deficient number, since it is larger than the sum of its proper divisors (1).

97726249 is an equidigital number, since it uses as much as digits as its factorization.

97726249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 381024, while the sum is 46.

The square root of 97726249 is about 9885.6587539728. The cubic root of 97726249 is about 460.6139392204.

The spelling of 97726249 in words is "ninety-seven million, seven hundred twenty-six thousand, two hundred forty-nine".