825786490 has 16 divisors (see below), whose sum is σ = 1497111840. Its totient is φ = 327937680.

The previous prime is 825786487. The next prime is 825786497. The reversal of 825786490 is 94687528.

It is not an unprimeable number, because it can be changed into a prime (825786497) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 295656 + ... + 298435.

It is an arithmetic number, because the mean of its divisors is an integer number (93569490).

Almost surely, 2^825786490 is an apocalyptic number.

825786490 is a deficient number, since it is larger than the sum of its proper divisors (671325350).

825786490 is a wasteful number, since it uses less digits than its factorization.

825786490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 594237.

The product of its (nonzero) digits is 967680, while the sum is 49.

The square root of 825786490 is about 28736.5010048196. The cubic root of 825786490 is about 938.1866694317.

The spelling of 825786490 in words is "eight hundred twenty-five million, seven hundred eighty-six thousand, four hundred ninety".