64788461 has 8 divisors (see below), whose sum is σ = 68282880. Its totient is φ = 61302528.

The previous prime is 64788457. The next prime is 64788467. The reversal of 64788461 is 16488746.

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

It is a cyclic number.

It is not a de Polignac number, because 64788461 - 2² = 64788457 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64788467) 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, 19085 + ... + 22221.

It is an arithmetic number, because the mean of its divisors is an integer number (8535360).

Almost surely, 2^64788461 is an apocalyptic number.

It is an amenable number.

64788461 is a deficient number, since it is larger than the sum of its proper divisors (3494419).

64788461 is a wasteful number, since it uses less digits than its factorization.

64788461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4243.

The product of its digits is 258048, while the sum is 44.

The square root of 64788461 is about 8049.1279651898. The cubic root of 64788461 is about 401.6359273167.

The spelling of 64788461 in words is "sixty-four million, seven hundred eighty-eight thousand, four hundred sixty-one".