47578900 has 18 divisors (see below), whose sum is σ = 103246430. Its totient is φ = 19031520.

The previous prime is 47578897. The next prime is 47578913. The reversal of 47578900 is 987574.

It can be written as a sum of positive squares in 3 ways, for example, as 8491396 + 39087504 = 2914^2 + 6252^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 237795 + ... + 237994.

Almost surely, 2^47578900 is an apocalyptic number.

It is an amenable number.

47578900 is an abundant number, since it is smaller than the sum of its proper divisors (55667530).

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

47578900 is a wasteful number, since it uses less digits than its factorization.

47578900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475803 (or 475796 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 40.

The square root of 47578900 is about 6897.7460086611. The cubic root of 47578900 is about 362.3582323169.

The spelling of 47578900 in words is "forty-seven million, five hundred seventy-eight thousand, nine hundred".