97689194 has 4 divisors (see below), whose sum is σ = 146533794. Its totient is φ = 48844596.

The previous prime is 97689187. The next prime is 97689199. The reversal of 97689194 is 49198679.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 51652969 + 46036225 = 7187^2 + 6785^2 .

It is not an unprimeable number, because it can be changed into a prime (97689199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24422297 + ... + 24422300.

Almost surely, 2^97689194 is an apocalyptic number.

97689194 is a deficient number, since it is larger than the sum of its proper divisors (48844600).

97689194 is a wasteful number, since it uses less digits than its factorization.

97689194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48844599.

The product of its digits is 979776, while the sum is 53.

The square root of 97689194 is about 9883.7843966772. The cubic root of 97689194 is about 460.5557146479. Note that the first 3 decimals are identical.

The spelling of 97689194 in words is "ninety-seven million, six hundred eighty-nine thousand, one hundred ninety-four".