47028890 has 8 divisors (see below), whose sum is σ = 84652020. Its totient is φ = 18811552.

The previous prime is 47028881. The next prime is 47028899. The reversal of 47028890 is 9882074.

It is an interprime number because it is at equal distance from previous prime (47028881) and next prime (47028899).

It can be written as a sum of positive squares in 2 ways, for example, as 42863209 + 4165681 = 6547^2 + 2041^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (47028899) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2351435 + ... + 2351454.

Almost surely, 2^47028890 is an apocalyptic number.

47028890 is a deficient number, since it is larger than the sum of its proper divisors (37623130).

47028890 is a wasteful number, since it uses less digits than its factorization.

47028890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4702896.

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 47028890 is about 6857.7612965165. The cubic root of 47028890 is about 360.9565354116.

The spelling of 47028890 in words is "forty-seven million, twenty-eight thousand, eight hundred ninety".