97638347623 has 4 divisors (see below), whose sum is σ = 97642769328. Its totient is φ = 97633925920.

The previous prime is 97638347579. The next prime is 97638347683. The reversal of 97638347623 is 32674383679.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32674383679 = 7 ⋅4667769097.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97638347623 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 (97638347683) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2177563 + ... + 2221948.

It is an arithmetic number, because the mean of its divisors is an integer number (24410692332).

Almost surely, 2^97638347623 is an apocalyptic number.

97638347623 is a deficient number, since it is larger than the sum of its proper divisors (4421705).

97638347623 is a wasteful number, since it uses less digits than its factorization.

97638347623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4421704.

The product of its digits is 27433728, while the sum is 58.

The spelling of 97638347623 in words is "ninety-seven billion, six hundred thirty-eight million, three hundred forty-seven thousand, six hundred twenty-three".