97400066 has 4 divisors (see below), whose sum is σ = 146100102. Its totient is φ = 48700032.

The previous prime is 97400063. The next prime is 97400129. The reversal of 97400066 is 66000479.

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., 81631225 + 15768841 = 9035^2 + 3971^2 .

It is not an unprimeable number, because it can be changed into a prime (97400063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24350015 + ... + 24350018.

Almost surely, 2^97400066 is an apocalyptic number.

97400066 is a deficient number, since it is larger than the sum of its proper divisors (48700036).

97400066 is a wasteful number, since it uses less digits than its factorization.

97400066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48700035.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 97400066 is about 9869.1471769348. The cubic root of 97400066 is about 460.1009009911.

The spelling of 97400066 in words is "ninety-seven million, four hundred thousand, sixty-six".