827474780 has 48 divisors (see below), whose sum is σ = 1907823456. Its totient is φ = 298970880.

The previous prime is 827474761. The next prime is 827474801. The reversal of 827474780 is 87474728.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22562 + ... + 46518.

It is an arithmetic number, because the mean of its divisors is an integer number (39746322).

Almost surely, 2^827474780 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 827474780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (953911728).

827474780 is an abundant number, since it is smaller than the sum of its proper divisors (1080348676).

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

827474780 is a wasteful number, since it uses less digits than its factorization.

827474780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24134 (or 24132 counting only the distinct ones).

The product of its (nonzero) digits is 702464, while the sum is 47.

The square root of 827474780 is about 28765.8613637763. The cubic root of 827474780 is about 938.8255968809.

The spelling of 827474780 in words is "eight hundred twenty-seven million, four hundred seventy-four thousand, seven hundred eighty".