47986530 has 32 divisors (see below), whose sum is σ = 117621504. Its totient is φ = 12523776.

The previous prime is 47986517. The next prime is 47986531. The reversal of 47986530 is 3568974.

It is a happy number.

It is a super-2 number, since 2×47986530² = 4605414122881800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (47986531) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15607 + ... + 18426.

It is an arithmetic number, because the mean of its divisors is an integer number (3675672).

Almost surely, 2^47986530 is an apocalyptic number.

47986530 is an abundant number, since it is smaller than the sum of its proper divisors (69634974).

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

47986530 is a wasteful number, since it uses less digits than its factorization.

47986530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34090.

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 47986530 is about 6927.2310485504. The cubic root of 47986530 is about 363.3901200882.

It can be divided in two parts, 47986 and 530, that added together give a triangular number (48516 = T₃₁₁).

The spelling of 47986530 in words is "forty-seven million, nine hundred eighty-six thousand, five hundred thirty".