47806590 has 64 divisors (see below), whose sum is σ = 126939456. Its totient is φ = 11446272.

The previous prime is 47806573. The next prime is 47806597. The reversal of 47806590 is 9560874.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47806597) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12774 + ... + 16086.

It is an arithmetic number, because the mean of its divisors is an integer number (1983429).

Almost surely, 2^47806590 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47806590, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63469728).

47806590 is an abundant number, since it is smaller than the sum of its proper divisors (79132866).

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

47806590 is a wasteful number, since it uses less digits than its factorization.

47806590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3373.

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 47806590 is about 6914.2309767609. The cubic root of 47806590 is about 362.9353374640.

The spelling of 47806590 in words is "forty-seven million, eight hundred six thousand, five hundred ninety".