47319828 has 12 divisors (see below), whose sum is σ = 110412960. Its totient is φ = 15773272.

The previous prime is 47319791. The next prime is 47319847. The reversal of 47319828 is 82891374.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×47319828² = 4478332243899168, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 47319828.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1971648 + ... + 1971671.

It is an arithmetic number, because the mean of its divisors is an integer number (9201080).

Almost surely, 2^47319828 is an apocalyptic number.

It is an amenable number.

47319828 is an abundant number, since it is smaller than the sum of its proper divisors (63093132).

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

47319828 is a wasteful number, since it uses less digits than its factorization.

47319828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3943326 (or 3943324 counting only the distinct ones).

The product of its digits is 96768, while the sum is 42.

The square root of 47319828 is about 6878.9409068548. The cubic root of 47319828 is about 361.6993423537.

It can be divided in two parts, 473 and 19828, that added together give a triangular number (20301 = T₂₀₁).

The spelling of 47319828 in words is "forty-seven million, three hundred nineteen thousand, eight hundred twenty-eight".