64879061 has 8 divisors (see below), whose sum is σ = 72279480. Its totient is φ = 57822912.

The previous prime is 64879057. The next prime is 64879069. The reversal of 64879061 is 16097846.

It can be written as a sum of positive squares in 4 ways, for example, as 6280036 + 58599025 = 2506^2 + 7655^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 64879061 - 2² = 64879057 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64879069) 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 7 ways as a sum of consecutive naturals, for example, 85670 + ... + 86423.

It is an arithmetic number, because the mean of its divisors is an integer number (9034935).

Almost surely, 2^64879061 is an apocalyptic number.

It is an amenable number.

64879061 is a deficient number, since it is larger than the sum of its proper divisors (7400419).

64879061 is a wasteful number, since it uses less digits than its factorization.

64879061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172135.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 64879061 is about 8054.7539378928. The cubic root of 64879061 is about 401.8230556309.

The spelling of 64879061 in words is "sixty-four million, eight hundred seventy-nine thousand, sixty-one".