64601347 has 4 divisors (see below), whose sum is σ = 64878840. Its totient is φ = 64323856.

The previous prime is 64601323. The next prime is 64601353. The reversal of 64601347 is 74310646.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74310646 = 2 ⋅37155323.

It is a cyclic number.

It is not a de Polignac number, because 64601347 - 2⁷ = 64601219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64601447) 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, 138397 + ... + 138862.

It is an arithmetic number, because the mean of its divisors is an integer number (16219710).

Almost surely, 2^64601347 is an apocalyptic number.

64601347 is a deficient number, since it is larger than the sum of its proper divisors (277493).

64601347 is a wasteful number, since it uses less digits than its factorization.

64601347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277492.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 64601347 is about 8037.4963141516. The cubic root of 64601347 is about 401.2489027962.

The spelling of 64601347 in words is "sixty-four million, six hundred one thousand, three hundred forty-seven".