10064781 has 6 divisors (see below), whose sum is σ = 14538030. Its totient is φ = 6709848.

The previous prime is 10064773. The next prime is 10064809. The reversal of 10064781 is 18746001.

It is a happy number.

10064781 is a `hidden beast` number, since 10 + 0 + 647 + 8 + 1 = 666.

10064781 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 5616900 + 4447881 = 2370^2 + 2109^2 .

It is not a de Polignac number, because 10064781 - 2³ = 10064773 is a prime.

It is a super-2 number, since 2×10064781² = 202599633155922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10064081) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 559146 + ... + 559163.

It is an arithmetic number, because the mean of its divisors is an integer number (2423005).

Almost surely, 2^10064781 is an apocalyptic number.

It is an amenable number.

10064781 is a deficient number, since it is larger than the sum of its proper divisors (4473249).

10064781 is a wasteful number, since it uses less digits than its factorization.

10064781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1118315 (or 1118312 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 10064781 is about 3172.5039007068. The cubic root of 10064781 is about 215.9076894649.

The spelling of 10064781 in words is "ten million, sixty-four thousand, seven hundred eighty-one".