704876989 has 4 divisors (see below), whose sum is σ = 705839356. Its totient is φ = 703914624.

The previous prime is 704876971. The next prime is 704877007. The reversal of 704876989 is 989678407.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (704876971) and next prime (704877007).

It can be written as a sum of positive squares in 2 ways, for example, as 336428964 + 368448025 = 18342^2 + 19195^2 .

It is a cyclic number.

It is not a de Polignac number, because 704876989 - 2⁵ = 704876957 is a prime.

It is a super-2 number, since 2×704876989² = 993703139243412242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (704876189) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 480084 + ... + 481549.

It is an arithmetic number, because the mean of its divisors is an integer number (176459839).

Almost surely, 2^704876989 is an apocalyptic number.

It is an amenable number.

704876989 is a deficient number, since it is larger than the sum of its proper divisors (962367).

704876989 is an equidigital number, since it uses as much as digits as its factorization.

704876989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 962366.

The product of its (nonzero) digits is 6096384, while the sum is 58.

The square root of 704876989 is about 26549.5195625081. The cubic root of 704876989 is about 889.9612780359.

The spelling of 704876989 in words is "seven hundred four million, eight hundred seventy-six thousand, nine hundred eighty-nine".