65838970 has 8 divisors (see below), whose sum is σ = 118510164. Its totient is φ = 26335584.

The previous prime is 65838953. The next prime is 65838973. The reversal of 65838970 is 7983856.

It can be written as a sum of positive squares in 2 ways, for example, as 60699681 + 5139289 = 7791^2 + 2267^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 65838970.

It is not an unprimeable number, because it can be changed into a prime (65838973) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3291939 + ... + 3291958.

Almost surely, 2^65838970 is an apocalyptic number.

65838970 is a deficient number, since it is larger than the sum of its proper divisors (52671194).

65838970 is a wasteful number, since it uses less digits than its factorization.

65838970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6583904.

The product of its (nonzero) digits is 362880, while the sum is 46.

The square root of 65838970 is about 8114.1216406953. The cubic root of 65838970 is about 403.7950672886.

The spelling of 65838970 in words is "sixty-five million, eight hundred thirty-eight thousand, nine hundred seventy".