97717655 has 16 divisors (see below), whose sum is σ = 135903744. Its totient is φ = 66060960.

The previous prime is 97717621. The next prime is 97717657. The reversal of 97717655 is 55671779.

It is not a de Polignac number, because 97717655 - 2⁶ = 97717591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97717657) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17177 + ... + 22146.

It is an arithmetic number, because the mean of its divisors is an integer number (8493984).

Almost surely, 2^97717655 is an apocalyptic number.

97717655 is a deficient number, since it is larger than the sum of its proper divisors (38186089).

97717655 is a wasteful number, since it uses less digits than its factorization.

97717655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39406.

The product of its digits is 463050, while the sum is 47.

The square root of 97717655 is about 9885.2240743445. The cubic root of 97717655 is about 460.6004367675.

The spelling of 97717655 in words is "ninety-seven million, seven hundred seventeen thousand, six hundred fifty-five".