47697780 has 48 divisors (see below), whose sum is σ = 143829504. Its totient is φ = 11740800.

The previous prime is 47697739. The next prime is 47697787. The reversal of 47697780 is 8779674.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47697787) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 29796 + ... + 31355.

It is an arithmetic number, because the mean of its divisors is an integer number (2996448).

Almost surely, 2^47697780 is an apocalyptic number.

It is an amenable number.

47697780 is an abundant number, since it is smaller than the sum of its proper divisors (96131724).

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

47697780 is a wasteful number, since it uses less digits than its factorization.

47697780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61176 (or 61174 counting only the distinct ones).

The product of its (nonzero) digits is 592704, while the sum is 48.

The square root of 47697780 is about 6906.3579403330. The cubic root of 47697780 is about 362.6597757816.

The spelling of 47697780 in words is "forty-seven million, six hundred ninety-seven thousand, seven hundred eighty".