704720331 has 20 divisors (see below), whose sum is σ = 1203121392. Its totient is φ = 402697008.

The previous prime is 704720327. The next prime is 704720353. The reversal of 704720331 is 133027407.

It is not a de Polignac number, because 704720331 - 2² = 704720327 is a prime.

It is a super-2 number, since 2×704720331² = 993261489849499122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 704720295 and 704720304.

It is not an unprimeable number, because it can be changed into a prime (704720311) by changing a digit.

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 19 ways as a sum of consecutive naturals, for example, 620880 + ... + 622013.

Almost surely, 2^704720331 is an apocalyptic number.

704720331 is a deficient number, since it is larger than the sum of its proper divisors (498401061).

704720331 is a wasteful number, since it uses less digits than its factorization.

704720331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1242912 (or 1242903 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 27.

The square root of 704720331 is about 26546.5691003565. The cubic root of 704720331 is about 889.8953422362.

Adding to 704720331 its reverse (133027407), we get a palindrome (837747738).

The spelling of 704720331 in words is "seven hundred four million, seven hundred twenty thousand, three hundred thirty-one".