825120774 has 24 divisors (see below), whose sum is σ = 1788360600. Its totient is φ = 274948128.

The previous prime is 825120773. The next prime is 825120799. The reversal of 825120774 is 477021528.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (825120773) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 67377 + ... + 78675.

It is an arithmetic number, because the mean of its divisors is an integer number (74515025).

Almost surely, 2^825120774 is an apocalyptic number.

825120774 is an abundant number, since it is smaller than the sum of its proper divisors (963239826).

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

825120774 is a wasteful number, since it uses less digits than its factorization.

825120774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15364 (or 15361 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 36.

The square root of 825120774 is about 28724.9155612336. The cubic root of 825120774 is about 937.9344921466.

The spelling of 825120774 in words is "eight hundred twenty-five million, one hundred twenty thousand, seven hundred seventy-four".