64805492 has 12 divisors (see below), whose sum is σ = 113476356. Its totient is φ = 32383680.

The previous prime is 64805471. The next prime is 64805509. The reversal of 64805492 is 29450846.

It can be written as a sum of positive squares in 2 ways, for example, as 30184036 + 34621456 = 5494^2 + 5884^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5192 + ... + 12512.

It is an arithmetic number, because the mean of its divisors is an integer number (9456363).

Almost surely, 2^64805492 is an apocalyptic number.

It is an amenable number.

64805492 is a deficient number, since it is larger than the sum of its proper divisors (48670864).

64805492 is a wasteful number, since it uses less digits than its factorization.

64805492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9538 (or 9536 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 64805492 is about 8050.1858363643. The cubic root of 64805492 is about 401.6711170305.

The spelling of 64805492 in words is "sixty-four million, eight hundred five thousand, four hundred ninety-two".