97955661 has 8 divisors (see below), whose sum is σ = 133386624. Its totient is φ = 63914240.

The previous prime is 97955657. The next prime is 97955701. The reversal of 97955661 is 16655979.

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 97955661 - 2² = 97955657 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 97955661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97955651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 347220 + ... + 347501.

It is an arithmetic number, because the mean of its divisors is an integer number (16673328).

Almost surely, 2^97955661 is an apocalyptic number.

It is an amenable number.

97955661 is a deficient number, since it is larger than the sum of its proper divisors (35430963).

97955661 is a wasteful number, since it uses less digits than its factorization.

97955661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 694771.

The product of its digits is 510300, while the sum is 48.

The square root of 97955661 is about 9897.2552255663. The cubic root of 97955661 is about 460.9740873786.

The spelling of 97955661 in words is "ninety-seven million, nine hundred fifty-five thousand, six hundred sixty-one".