64860788 has 6 divisors (see below), whose sum is σ = 113506386. Its totient is φ = 32430392.

The previous prime is 64860787. The next prime is 64860793. The reversal of 64860788 is 88706846.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 51523684 + 13337104 = 7178^2 + 3652^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64860787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8107595 + ... + 8107602.

It is an arithmetic number, because the mean of its divisors is an integer number (18917731).

Almost surely, 2^64860788 is an apocalyptic number.

It is an amenable number.

64860788 is a deficient number, since it is larger than the sum of its proper divisors (48645598).

64860788 is a wasteful number, since it uses less digits than its factorization.

64860788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16215201 (or 16215199 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 47.

The square root of 64860788 is about 8053.6195589313. The cubic root of 64860788 is about 401.7853279880.

The spelling of 64860788 in words is "sixty-four million, eight hundred sixty thousand, seven hundred eighty-eight".