64892045 has 4 divisors (see below), whose sum is σ = 77870460. Its totient is φ = 51913632.

The previous prime is 64892041. The next prime is 64892063. The reversal of 64892045 is 54029846.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 48916036 + 15976009 = 6994^2 + 3997^2 .

It is a cyclic number.

It is not a de Polignac number, because 64892045 - 2² = 64892041 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64892041) 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, 6489200 + ... + 6489209.

It is an arithmetic number, because the mean of its divisors is an integer number (19467615).

Almost surely, 2^64892045 is an apocalyptic number.

It is an amenable number.

64892045 is a deficient number, since it is larger than the sum of its proper divisors (12978415).

64892045 is a wasteful number, since it uses less digits than its factorization.

64892045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12978414.

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

The square root of 64892045 is about 8055.5598812249. The cubic root of 64892045 is about 401.8498589501.

The spelling of 64892045 in words is "sixty-four million, eight hundred ninety-two thousand, forty-five".