66427097 has 16 divisors (see below), whose sum is σ = 77587200. Its totient is φ = 56229840.

The previous prime is 66427061. The next prime is 66427111. The reversal of 66427097 is 79072466.

It is a cyclic number.

It is not a de Polignac number, because 66427097 - 2¹² = 66423001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66427037) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9638 + ... + 15024.

It is an arithmetic number, because the mean of its divisors is an integer number (4849200).

Almost surely, 2^66427097 is an apocalyptic number.

It is an amenable number.

66427097 is a deficient number, since it is larger than the sum of its proper divisors (11160103).

66427097 is a wasteful number, since it uses less digits than its factorization.

66427097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5476.

The product of its (nonzero) digits is 127008, while the sum is 41.

The square root of 66427097 is about 8150.2820196604. The cubic root of 66427097 is about 404.9938463730.

The spelling of 66427097 in words is "sixty-six million, four hundred twenty-seven thousand, ninety-seven".