97129877 has 6 divisors (see below), whose sum is σ = 105176322. Its totient is φ = 89658192.

The previous prime is 97129829. The next prime is 97129889. The reversal of 97129877 is 77892179.

It can be written as a sum of positive squares in 3 ways, for example, as 13205956 + 83923921 = 3634^2 + 9161^2 .

It is not a de Polignac number, because 97129877 - 2¹² = 97125781 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 (97129807) 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 5 ways as a sum of consecutive naturals, for example, 287198 + ... + 287535.

It is an arithmetic number, because the mean of its divisors is an integer number (17529387).

Almost surely, 2^97129877 is an apocalyptic number.

It is an amenable number.

97129877 is a deficient number, since it is larger than the sum of its proper divisors (8046445).

97129877 is a wasteful number, since it uses less digits than its factorization.

97129877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 574759 (or 574746 counting only the distinct ones).

The product of its digits is 444528, while the sum is 50.

The square root of 97129877 is about 9855.4491018928. The cubic root of 97129877 is about 459.6750651074.

The spelling of 97129877 in words is "ninety-seven million, one hundred twenty-nine thousand, eight hundred seventy-seven".