97648669 has 8 divisors (see below), whose sum is σ = 99428472. Its totient is φ = 95880960.

The previous prime is 97648651. The next prime is 97648673. The reversal of 97648669 is 96684679.

It can be written as a sum of positive squares in 4 ways, for example, as 6827769 + 90820900 = 2613^2 + 9530^2 .

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 97648669 - 2⁵ = 97648637 is a prime.

It is a super-2 number, since 2×97648669² = 19070525114943122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97648609) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14139 + ... + 19879.

It is an arithmetic number, because the mean of its divisors is an integer number (12428559).

Almost surely, 2^97648669 is an apocalyptic number.

It is an amenable number.

97648669 is a deficient number, since it is larger than the sum of its proper divisors (1779803).

97648669 is a wasteful number, since it uses less digits than its factorization.

97648669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6047.

The product of its digits is 3919104, while the sum is 55.

The square root of 97648669 is about 9881.7341089507. The cubic root of 97648669 is about 460.4920208008.

The spelling of 97648669 in words is "ninety-seven million, six hundred forty-eight thousand, six hundred sixty-nine".