97667393 has 4 divisors (see below), whose sum is σ = 99510228. Its totient is φ = 95824560.

The previous prime is 97667359. The next prime is 97667413. The reversal of 97667393 is 39376679.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 63888049 + 33779344 = 7993^2 + 5812^2 .

It is a cyclic number.

It is not a de Polignac number, because 97667393 - 2¹² = 97663297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97667333) 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 in 3 ways as a sum of consecutive naturals, for example, 921338 + ... + 921443.

It is an arithmetic number, because the mean of its divisors is an integer number (24877557).

Almost surely, 2^97667393 is an apocalyptic number.

It is an amenable number.

97667393 is a deficient number, since it is larger than the sum of its proper divisors (1842835).

97667393 is a wasteful number, since it uses less digits than its factorization.

97667393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1842834.

The product of its digits is 1285956, while the sum is 50.

The square root of 97667393 is about 9882.6814681037. The cubic root of 97667393 is about 460.5214518268.

The spelling of 97667393 in words is "ninety-seven million, six hundred sixty-seven thousand, three hundred ninety-three".