97280066 has 8 divisors (see below), whose sum is σ = 157144764. Its totient is φ = 44898480.

The previous prime is 97280033. The next prime is 97280081. The reversal of 97280066 is 66008279.

It can be written as a sum of positive squares in 2 ways, for example, as 95628841 + 1651225 = 9779^2 + 1285^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×97280066² = 18926822481928712, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1870745 + ... + 1870796.

Almost surely, 2^97280066 is an apocalyptic number.

97280066 is a deficient number, since it is larger than the sum of its proper divisors (59864698).

97280066 is a wasteful number, since it uses less digits than its factorization.

97280066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3741556.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 97280066 is about 9863.0657505666. The cubic root of 97280066 is about 459.9118703252.

The spelling of 97280066 in words is "ninety-seven million, two hundred eighty thousand, sixty-six".