64943802 has 64 divisors (see below), whose sum is σ = 179942400. Its totient is φ = 16867440.

The previous prime is 64943797. The next prime is 64943807. The reversal of 64943802 is 20834946.

It is a happy number.

64943802 is a `hidden beast` number, since 649 + 4 + 3 + 8 + 0 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (64943797) and next prime (64943807).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64943807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3652 + ... + 11967.

It is an arithmetic number, because the mean of its divisors is an integer number (2811600).

Almost surely, 2^64943802 is an apocalyptic number.

64943802 is an abundant number, since it is smaller than the sum of its proper divisors (114998598).

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

64943802 is a wasteful number, since it uses less digits than its factorization.

64943802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15648 (or 15642 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 64943802 is about 8058.7717426417. The cubic root of 64943802 is about 401.9566671938.

It can be divided in two parts, 6494 and 3802, that added together give a triangular number (10296 = T₁₄₃).

The spelling of 64943802 in words is "sixty-four million, nine hundred forty-three thousand, eight hundred two".