97394197437 has 6 divisors (see below), whose sum is σ = 140680507422. Its totient is φ = 64929464952.

The previous prime is 97394197421. The next prime is 97394197469. The reversal of 97394197437 is 73479149379.

97394197437 is a `hidden beast` number, since 9 + 7 + 3 + 9 + 4 + 197 + 437 = 666.

It can be written as a sum of positive squares in only one way, i.e., 75941029476 + 21453167961 = 275574^2 + 146469^2 .

It is not a de Polignac number, because 97394197437 - 2⁴ = 97394197421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97394192437) 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, 5410788738 + ... + 5410788755.

It is an arithmetic number, because the mean of its divisors is an integer number (23446751237).

Almost surely, 2^97394197437 is an apocalyptic number.

It is an amenable number.

97394197437 is a deficient number, since it is larger than the sum of its proper divisors (43286309985).

97394197437 is a wasteful number, since it uses less digits than its factorization.

97394197437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10821577499 (or 10821577496 counting only the distinct ones).

The product of its digits is 36006768, while the sum is 63.

The spelling of 97394197437 in words is "ninety-seven billion, three hundred ninety-four million, one hundred ninety-seven thousand, four hundred thirty-seven".