704387491 has 2 divisors, whose sum is σ = 704387492. Its totient is φ = 704387490.

The previous prime is 704387483. The next prime is 704387533. The reversal of 704387491 is 194783407.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 704387491 - 2³ = 704387483 is a prime.

It is not a weakly prime, because it can be changed into another prime (704387441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 352193745 + 352193746.

It is an arithmetic number, because the mean of its divisors is an integer number (352193746).

Almost surely, 2^704387491 is an apocalyptic number.

704387491 is a deficient number, since it is larger than the sum of its proper divisors (1).

704387491 is an equidigital number, since it uses as much as digits as its factorization.

704387491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 169344, while the sum is 43.

The square root of 704387491 is about 26540.2993766084. The cubic root of 704387491 is about 889.7552207367.

The spelling of 704387491 in words is "seven hundred four million, three hundred eighty-seven thousand, four hundred ninety-one".