47477380 has 12 divisors (see below), whose sum is σ = 99702540. Its totient is φ = 18990944.

The previous prime is 47477377. The next prime is 47477383. The reversal of 47477380 is 8377474.

It is an interprime number because it is at equal distance from previous prime (47477377) and next prime (47477383).

It can be written as a sum of positive squares in 2 ways, for example, as 8714304 + 38763076 = 2952^2 + 6226^2 .

It is a super-2 number, since 2×47477380² = 4508203223328800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (47477383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1186915 + ... + 1186954.

It is an arithmetic number, because the mean of its divisors is an integer number (8308545).

Almost surely, 2^47477380 is an apocalyptic number.

It is an amenable number.

47477380 is an abundant number, since it is smaller than the sum of its proper divisors (52225160).

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

47477380 is a wasteful number, since it uses less digits than its factorization.

47477380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2373878 (or 2373876 counting only the distinct ones).

The product of its (nonzero) digits is 131712, while the sum is 40.

The square root of 47477380 is about 6890.3831533522. The cubic root of 47477380 is about 362.1003252552.

The spelling of 47477380 in words is "forty-seven million, four hundred seventy-seven thousand, three hundred eighty".