64867850 has 12 divisors (see below), whose sum is σ = 120654294. Its totient is φ = 25947120.

The previous prime is 64867837. The next prime is 64867853. The reversal of 64867850 is 5876846.

It can be written as a sum of positive squares in 3 ways, for example, as 63473089 + 1394761 = 7967^2 + 1181^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (64867853) 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, 648629 + ... + 648728.

Almost surely, 2^64867850 is an apocalyptic number.

64867850 is a deficient number, since it is larger than the sum of its proper divisors (55786444).

64867850 is a wasteful number, since it uses less digits than its factorization.

64867850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1297369 (or 1297364 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 44.

The square root of 64867850 is about 8054.0579834019. The cubic root of 64867850 is about 401.7999094996.

The spelling of 64867850 in words is "sixty-four million, eight hundred sixty-seven thousand, eight hundred fifty".