47578068 has 36 divisors (see below), whose sum is σ = 120605940. Its totient is φ = 15814656.

The previous prime is 47578057. The next prime is 47578093. The reversal of 47578068 is 86087574.

It can be written as a sum of positive squares in 2 ways, for example, as 25280784 + 22297284 = 5028^2 + 4722^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×47578068² = 4527345109225248, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12628 + ... + 15956.

It is an arithmetic number, because the mean of its divisors is an integer number (3350165).

Almost surely, 2^47578068 is an apocalyptic number.

It is an amenable number.

47578068 is an abundant number, since it is smaller than the sum of its proper divisors (73027872).

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

47578068 is a wasteful number, since it uses less digits than its factorization.

47578068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3736 (or 3731 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 45.

The square root of 47578068 is about 6897.6856988413. The cubic root of 47578068 is about 362.3561201495.

The spelling of 47578068 in words is "forty-seven million, five hundred seventy-eight thousand, sixty-eight".