825839390 has 8 divisors (see below), whose sum is σ = 1486510920. Its totient is φ = 330335752.

The previous prime is 825839383. The next prime is 825839407. The reversal of 825839390 is 93938528.

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

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, 41291960 + ... + 41291979.

It is an arithmetic number, because the mean of its divisors is an integer number (185813865).

Almost surely, 2^825839390 is an apocalyptic number.

825839390 is a deficient number, since it is larger than the sum of its proper divisors (660671530).

825839390 is a wasteful number, since it uses less digits than its factorization.

825839390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82583946.

The product of its (nonzero) digits is 466560, while the sum is 47.

The square root of 825839390 is about 28737.4214222501. The cubic root of 825839390 is about 938.2067024611.

The spelling of 825839390 in words is "eight hundred twenty-five million, eight hundred thirty-nine thousand, three hundred ninety".