65878630 has 8 divisors (see below), whose sum is σ = 118581552. Its totient is φ = 26351448.

The previous prime is 65878591. The next prime is 65878639. The reversal of 65878630 is 3687856.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65878639) 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, 3293922 + ... + 3293941.

It is an arithmetic number, because the mean of its divisors is an integer number (14822694).

Almost surely, 2^65878630 is an apocalyptic number.

65878630 is a deficient number, since it is larger than the sum of its proper divisors (52702922).

65878630 is a wasteful number, since it uses less digits than its factorization.

65878630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6587870.

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 65878630 is about 8116.5651602140. The cubic root of 65878630 is about 403.8761302105.

The spelling of 65878630 in words is "sixty-five million, eight hundred seventy-eight thousand, six hundred thirty".