65678349 has 8 divisors (see below), whose sum is σ = 95532192. Its totient is φ = 39805040.

The previous prime is 65678323. The next prime is 65678377. The reversal of 65678349 is 94387656.

65678349 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 65678349 - 2¹⁵ = 65645581 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 65678298 and 65678307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65678449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 995094 + ... + 995159.

It is an arithmetic number, because the mean of its divisors is an integer number (11941524).

Almost surely, 2^65678349 is an apocalyptic number.

It is an amenable number.

65678349 is a deficient number, since it is larger than the sum of its proper divisors (29853843).

65678349 is a wasteful number, since it uses less digits than its factorization.

65678349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1990267.

The product of its digits is 1088640, while the sum is 48.

The square root of 65678349 is about 8104.2179758444. The cubic root of 65678349 is about 403.4664332406.

The spelling of 65678349 in words is "sixty-five million, six hundred seventy-eight thousand, three hundred forty-nine".