704780387 has 2 divisors, whose sum is σ = 704780388. Its totient is φ = 704780386.

The previous prime is 704780327. The next prime is 704780389. The reversal of 704780387 is 783087407.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 704780387 - 2²⁶ = 637671523 is a prime.

Together with 704780389, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (704780389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 352390193 + 352390194.

It is an arithmetic number, because the mean of its divisors is an integer number (352390194).

Almost surely, 2^704780387 is an apocalyptic number.

704780387 is a deficient number, since it is larger than the sum of its proper divisors (1).

704780387 is an equidigital number, since it uses as much as digits as its factorization.

704780387 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 263424, while the sum is 44.

The square root of 704780387 is about 26547.7002205464. The cubic root of 704780387 is about 889.9206203663.

The spelling of 704780387 in words is "seven hundred four million, seven hundred eighty thousand, three hundred eighty-seven".