47997108 has 18 divisors (see below), whose sum is σ = 121326114. Its totient is φ = 15999024.

The previous prime is 47997049. The next prime is 47997109. The reversal of 47997108 is 80179974.

It can be written as a sum of positive squares in only one way, i.e., 47858724 + 138384 = 6918^2 + 372^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47997109) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 666591 + ... + 666662.

Almost surely, 2^47997108 is an apocalyptic number.

It is an amenable number.

47997108 is an abundant number, since it is smaller than the sum of its proper divisors (73329006).

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

47997108 is a wasteful number, since it uses less digits than its factorization.

47997108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1333263 (or 1333258 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 45.

The square root of 47997108 is about 6927.9945150094. The cubic root of 47997108 is about 363.4168196521.

The spelling of 47997108 in words is "forty-seven million, nine hundred ninety-seven thousand, one hundred eight".