97915061 has 4 divisors (see below), whose sum is σ = 100561452. Its totient is φ = 95268672.

The previous prime is 97915057. The next prime is 97915067. The reversal of 97915061 is 16051979.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16051979 = 19 ⋅844841.

It can be written as a sum of positive squares in 2 ways, for example, as 84180625 + 13734436 = 9175^2 + 3706^2 .

It is a cyclic number.

It is not a de Polignac number, because 97915061 - 2² = 97915057 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 (97915067) 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 3 ways as a sum of consecutive naturals, for example, 1323140 + ... + 1323213.

It is an arithmetic number, because the mean of its divisors is an integer number (25140363).

Almost surely, 2^97915061 is an apocalyptic number.

It is an amenable number.

97915061 is a deficient number, since it is larger than the sum of its proper divisors (2646391).

97915061 is a wasteful number, since it uses less digits than its factorization.

97915061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2646390.

The product of its (nonzero) digits is 17010, while the sum is 38.

The square root of 97915061 is about 9895.2039392829. The cubic root of 97915061 is about 460.9103914368.

The spelling of 97915061 in words is "ninety-seven million, nine hundred fifteen thousand, sixty-one".