65678001 has 8 divisors (see below), whose sum is σ = 87870720. Its totient is φ = 43635312.

The previous prime is 65677981. The next prime is 65678009. The reversal of 65678001 is 10087656.

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

It is not a de Polignac number, because 65678001 - 2¹⁵ = 65645233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65678009) 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, 36481 + ... + 38238.

It is an arithmetic number, because the mean of its divisors is an integer number (10983840).

Almost surely, 2^65678001 is an apocalyptic number.

It is an amenable number.

65678001 is a deficient number, since it is larger than the sum of its proper divisors (22192719).

65678001 is a wasteful number, since it uses less digits than its factorization.

65678001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75015.

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 65678001 is about 8104.1965055149. The cubic root of 65678001 is about 403.4657206437.

The spelling of 65678001 in words is "sixty-five million, six hundred seventy-eight thousand, one".