771342043 has 2 divisors, whose sum is σ = 771342044. Its totient is φ = 771342042.

The previous prime is 771342023. The next prime is 771342079. The reversal of 771342043 is 340243177.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 771342043 - 2⁹ = 771341531 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 771341996 and 771342014.

It is not a weakly prime, because it can be changed into another prime (771342023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 385671021 + 385671022.

It is an arithmetic number, because the mean of its divisors is an integer number (385671022).

Almost surely, 2^771342043 is an apocalyptic number.

771342043 is a deficient number, since it is larger than the sum of its proper divisors (1).

771342043 is an equidigital number, since it uses as much as digits as its factorization.

771342043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14112, while the sum is 31.

The square root of 771342043 is about 27773.0452597478. The cubic root of 771342043 is about 917.0978344219.

The spelling of 771342043 in words is "seven hundred seventy-one million, three hundred forty-two thousand, forty-three".