704398901 has 4 divisors (see below), whose sum is σ = 721579404. Its totient is φ = 687218400.

The previous prime is 704398883. The next prime is 704398909. The reversal of 704398901 is 109893407.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 361038001 + 343360900 = 19001^2 + 18530^2 .

It is a cyclic number.

It is not a de Polignac number, because 704398901 - 2²² = 700204597 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41), and also a Moran number because the ratio is a prime number: 17180461 = 704398901 / (7 + 0 + 4 + 3 + 9 + 8 + 9 + 0 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (704398909) 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, 8590190 + ... + 8590271.

It is an arithmetic number, because the mean of its divisors is an integer number (180394851).

Almost surely, 2^704398901 is an apocalyptic number.

It is an amenable number.

704398901 is a deficient number, since it is larger than the sum of its proper divisors (17180503).

704398901 is a wasteful number, since it uses less digits than its factorization.

704398901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17180502.

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 704398901 is about 26540.5143318663. The cubic root of 704398901 is about 889.7600249353.

The spelling of 704398901 in words is "seven hundred four million, three hundred ninety-eight thousand, nine hundred one".