65710979 has 8 divisors (see below), whose sum is σ = 67936128. Its totient is φ = 63492480.

The previous prime is 65710973. The next prime is 65710991. The reversal of 65710979 is 97901756.

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

It is a cyclic number.

It is not a de Polignac number, because 65710979 - 2¹⁶ = 65645443 is a prime.

It is a super-2 number, since 2×65710979² = 8635865522276882, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (65710973) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25979 + ... + 28395.

It is an arithmetic number, because the mean of its divisors is an integer number (8492016).

Almost surely, 2^65710979 is an apocalyptic number.

65710979 is a deficient number, since it is larger than the sum of its proper divisors (2225149).

65710979 is a wasteful number, since it uses less digits than its factorization.

65710979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3325.

The product of its (nonzero) digits is 119070, while the sum is 44.

The square root of 65710979 is about 8106.2308750738. The cubic root of 65710979 is about 403.5332382599.

The spelling of 65710979 in words is "sixty-five million, seven hundred ten thousand, nine hundred seventy-nine".