65980479 has 8 divisors (see below), whose sum is σ = 88054272. Its totient is φ = 43946840.

The previous prime is 65980471. The next prime is 65980487. The reversal of 65980479 is 97408956.

It is an interprime number because it is at equal distance from previous prime (65980471) and next prime (65980487).

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 65980479 - 2³ = 65980471 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65980471) 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, 5967 + ... + 12944.

It is an arithmetic number, because the mean of its divisors is an integer number (11006784).

Almost surely, 2^65980479 is an apocalyptic number.

65980479 is a deficient number, since it is larger than the sum of its proper divisors (22073793).

65980479 is a wasteful number, since it uses less digits than its factorization.

65980479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20077.

The product of its (nonzero) digits is 544320, while the sum is 48.

The square root of 65980479 is about 8122.8368812872. The cubic root of 65980479 is about 404.0841551807.

The spelling of 65980479 in words is "sixty-five million, nine hundred eighty thousand, four hundred seventy-nine".