97555771 has 6 divisors (see below), whose sum is σ = 97960020. Its totient is φ = 97153056.

The previous prime is 97555753. The next prime is 97555781. The reversal of 97555771 is 17755579.

It is not a de Polignac number, because 97555771 - 2¹³ = 97547579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97555781) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 113140 + ... + 113998.

It is an arithmetic number, because the mean of its divisors is an integer number (16326670).

Almost surely, 2^97555771 is an apocalyptic number.

97555771 is a deficient number, since it is larger than the sum of its proper divisors (404249).

97555771 is an frugal number, since it uses more digits than its factorization.

97555771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1533 (or 1196 counting only the distinct ones).

The product of its digits is 385875, while the sum is 46.

The square root of 97555771 is about 9877.0324996934. The cubic root of 97555771 is about 460.3459448695.

The spelling of 97555771 in words is "ninety-seven million, five hundred fifty-five thousand, seven hundred seventy-one".