65940970 has 16 divisors (see below), whose sum is σ = 118867680. Its totient is φ = 26337744.

The previous prime is 65940961. The next prime is 65940971. The reversal of 65940970 is 7904956.

It is not an unprimeable number, because it can be changed into a prime (65940971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2929 + ... + 11851.

It is an arithmetic number, because the mean of its divisors is an integer number (7429230).

Almost surely, 2^65940970 is an apocalyptic number.

65940970 is a deficient number, since it is larger than the sum of its proper divisors (52926710).

65940970 is a wasteful number, since it uses less digits than its factorization.

65940970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9669.

The product of its (nonzero) digits is 68040, while the sum is 40.

The square root of 65940970 is about 8120.4045465728. The cubic root of 65940970 is about 404.0034841055.

The spelling of 65940970 in words is "sixty-five million, nine hundred forty thousand, nine hundred seventy".