97649999 has 8 divisors (see below), whose sum is σ = 99121680. Its totient is φ = 96186816.

The previous prime is 97649963. The next prime is 97650041. The reversal of 97649999 is 99994679.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 97649999 - 2¹² = 97645903 is a prime.

It is a Duffinian number.

97649999 is a modest number, since divided by 9999 gives 9764 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97649599) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23249 + ... + 27125.

It is an arithmetic number, because the mean of its divisors is an integer number (12390210).

Almost surely, 2^97649999 is an apocalyptic number.

97649999 is a deficient number, since it is larger than the sum of its proper divisors (1471681).

97649999 is a wasteful number, since it uses less digits than its factorization.

97649999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4249.

The product of its digits is 9920232, while the sum is 62.

The square root of 97649999 is about 9881.8014046023. The cubic root of 97649999 is about 460.4941114645.

The spelling of 97649999 in words is "ninety-seven million, six hundred forty-nine thousand, nine hundred ninety-nine".