770440487 has 2 divisors, whose sum is σ = 770440488. Its totient is φ = 770440486.

The previous prime is 770440439. The next prime is 770440507. The reversal of 770440487 is 784044077.

It is a strong prime.

It is an emirp because it is prime and its reverse (784044077) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 770440487 - 2¹⁶ = 770374951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (770440687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 385220243 + 385220244.

It is an arithmetic number, because the mean of its divisors is an integer number (385220244).

Almost surely, 2^770440487 is an apocalyptic number.

770440487 is a deficient number, since it is larger than the sum of its proper divisors (1).

770440487 is an equidigital number, since it uses as much as digits as its factorization.

770440487 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 175616, while the sum is 41.

The square root of 770440487 is about 27756.8097410347. The cubic root of 770440487 is about 916.7403892810.

The spelling of 770440487 in words is "seven hundred seventy million, four hundred forty thousand, four hundred eighty-seven".