47828990 has 32 divisors (see below), whose sum is σ = 99447264. Its totient is φ = 16368640.

The previous prime is 47828987. The next prime is 47829011. The reversal of 47828990 is 9982874.

It is a super-2 number, since 2×47828990² = 4575224568840200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10919 + ... + 14658.

It is an arithmetic number, because the mean of its divisors is an integer number (3107727).

Almost surely, 2^47828990 is an apocalyptic number.

47828990 is an abundant number, since it is smaller than the sum of its proper divisors (51618274).

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

47828990 is a wasteful number, since it uses less digits than its factorization.

47828990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25612.

The product of its (nonzero) digits is 290304, while the sum is 47.

The square root of 47828990 is about 6915.8506345930. The cubic root of 47828990 is about 362.9920136262.

The spelling of 47828990 in words is "forty-seven million, eight hundred twenty-eight thousand, nine hundred ninety".