64777060 has 12 divisors (see below), whose sum is σ = 136031868. Its totient is φ = 25910816.

The previous prime is 64777019. The next prime is 64777067. The reversal of 64777060 is 6077746.

It can be written as a sum of positive squares in 2 ways, for example, as 8856576 + 55920484 = 2976^2 + 7478^2 .

It is not an unprimeable number, because it can be changed into a prime (64777067) 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, 1619407 + ... + 1619446.

It is an arithmetic number, because the mean of its divisors is an integer number (11335989).

Almost surely, 2^64777060 is an apocalyptic number.

It is an amenable number.

64777060 is an abundant number, since it is smaller than the sum of its proper divisors (71254808).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64777060 is a wasteful number, since it uses less digits than its factorization.

64777060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3238862 (or 3238860 counting only the distinct ones).

The product of its (nonzero) digits is 49392, while the sum is 37.

The square root of 64777060 is about 8048.4197206657. The cubic root of 64777060 is about 401.6123669493.

The spelling of 64777060 in words is "sixty-four million, seven hundred seventy-seven thousand, sixty".