704666649 has 8 divisors (see below), whose sum is σ = 951448960. Its totient is φ = 463831056.

The previous prime is 704666647. The next prime is 704666657. The reversal of 704666649 is 946666407.

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

It is not a de Polignac number, because 704666649 - 2¹ = 704666647 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 704666598 and 704666607.

It is not an unprimeable number, because it can be changed into a prime (704666647) 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, 1486402 + ... + 1486875.

It is an arithmetic number, because the mean of its divisors is an integer number (118931120).

Almost surely, 2^704666649 is an apocalyptic number.

704666649 is a gapful number since it is divisible by the number (79) formed by its first and last digit.

It is an amenable number.

704666649 is a deficient number, since it is larger than the sum of its proper divisors (246782311).

704666649 is a wasteful number, since it uses less digits than its factorization.

704666649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2973359.

The product of its (nonzero) digits is 1306368, while the sum is 48.

The square root of 704666649 is about 26545.5579899915. The cubic root of 704666649 is about 889.8727457665.

The spelling of 704666649 in words is "seven hundred four million, six hundred sixty-six thousand, six hundred forty-nine".