97136738 has 4 divisors (see below), whose sum is σ = 145705110. Its totient is φ = 48568368.

The previous prime is 97136731. The next prime is 97136761. The reversal of 97136738 is 83763179.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 83763179 = 677 ⋅123727.

It can be written as a sum of positive squares in only one way, i.e., 85692049 + 11444689 = 9257^2 + 3383^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (97136731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24284183 + ... + 24284186.

Almost surely, 2^97136738 is an apocalyptic number.

97136738 is a deficient number, since it is larger than the sum of its proper divisors (48568372).

97136738 is a wasteful number, since it uses less digits than its factorization.

97136738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48568371.

The product of its digits is 190512, while the sum is 44.

The square root of 97136738 is about 9855.7971772962. The cubic root of 97136738 is about 459.6858882666.

The spelling of 97136738 in words is "ninety-seven million, one hundred thirty-six thousand, seven hundred thirty-eight".