64000651 has 48 divisors (see below), whose sum is σ = 83119680. Its totient is φ = 48787200.

The previous prime is 64000649. The next prime is 64000661. The reversal of 64000651 is 15600046.

64000651 = T₄₀₃ + T₄₀₄ + ... + T₇₆₅.

64000651 is nontrivially palindromic in base 3.

It is not a de Polignac number, because 64000651 - 2¹ = 64000649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64000661) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1049161 + ... + 1049221.

It is an arithmetic number, because the mean of its divisors is an integer number (1731660).

Almost surely, 2^64000651 is an apocalyptic number.

64000651 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

64000651 is a deficient number, since it is larger than the sum of its proper divisors (19119029).

64000651 is a wasteful number, since it uses less digits than its factorization.

64000651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148 (or 137 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 64000651 is about 8000.0406873965. The cubic root of 64000651 is about 400.0013562454.

Adding to 64000651 its reverse (15600046), we get a palindrome (79600697).

The spelling of 64000651 in words is "sixty-four million, six hundred fifty-one", and thus it is an aban number.