704523090 has 128 divisors (see below), whose sum is σ = 1796401152. Its totient is φ = 176647680.

The previous prime is 704523089. The next prime is 704523103. The reversal of 704523090 is 90325407.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6839979 + ... + 6840081.

It is an arithmetic number, because the mean of its divisors is an integer number (14034384).

Almost surely, 2^704523090 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 704523090, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (898200576).

704523090 is an abundant number, since it is smaller than the sum of its proper divisors (1091878062).

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

704523090 is a wasteful number, since it uses less digits than its factorization.

704523090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304.

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 704523090 is about 26542.8538405349. The cubic root of 704523090 is about 889.8123115561.

Adding to 704523090 its reverse (90325407), we get a palindrome (794848497).

It can be divided in two parts, 7045 and 23090, that added together give a triangular number (30135 = T₂₄₅).

The spelling of 704523090 in words is "seven hundred four million, five hundred twenty-three thousand, ninety".