47709480 has 256 divisors, whose sum is σ = 187246080. Its totient is φ = 9437184.

The previous prime is 47709469. The next prime is 47709491. The reversal of 47709480 is 8490774.

It is an interprime number because it is at equal distance from previous prime (47709469) and next prime (47709491).

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 185512 + ... + 185768.

It is an arithmetic number, because the mean of its divisors is an integer number (731430).

Almost surely, 2^47709480 is an apocalyptic number.

47709480 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47709480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93623040).

47709480 is an abundant number, since it is smaller than the sum of its proper divisors (139536600).

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

47709480 is a wasteful number, since it uses less digits than its factorization.

47709480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308 (or 304 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 39.

The square root of 47709480 is about 6907.2049339802. The cubic root of 47709480 is about 362.6894261656.

The spelling of 47709480 in words is "forty-seven million, seven hundred nine thousand, four hundred eighty".