789406481 has 2 divisors, whose sum is σ = 789406482. Its totient is φ = 789406480.

The previous prime is 789406463. The next prime is 789406531. The reversal of 789406481 is 184604987.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 742072081 + 47334400 = 27241^2 + 6880^2 .

It is a cyclic number.

It is not a de Polignac number, because 789406481 - 2⁶ = 789406417 is a prime.

It is a super-2 number, since 2×789406481² = 1246325184489606722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (789406421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 394703240 + 394703241.

It is an arithmetic number, because the mean of its divisors is an integer number (394703241).

Almost surely, 2^789406481 is an apocalyptic number.

It is an amenable number.

789406481 is a deficient number, since it is larger than the sum of its proper divisors (1).

789406481 is an equidigital number, since it uses as much as digits as its factorization.

789406481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 387072, while the sum is 47.

The square root of 789406481 is about 28096.3784321040. The cubic root of 789406481 is about 924.2019826834.

The spelling of 789406481 in words is "seven hundred eighty-nine million, four hundred six thousand, four hundred eighty-one".