1020429677 has 2 divisors, whose sum is σ = 1020429678. Its totient is φ = 1020429676.

The previous prime is 1020429671. The next prime is 1020429701. The reversal of 1020429677 is 7769240201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 559511716 + 460917961 = 23654^2 + 21469^2 .

It is a cyclic number.

It is not a de Polignac number, because 1020429677 - 2²⁰ = 1019381101 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1020429677.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1020429671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510214838 + 510214839.

It is an arithmetic number, because the mean of its divisors is an integer number (510214839).

Almost surely, 2^1020429677 is an apocalyptic number.

It is an amenable number.

1020429677 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020429677 is an equidigital number, since it uses as much as digits as its factorization.

1020429677 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 1020429677 is about 31944.1649914347. The cubic root of 1020429677 is about 1006.7640369805.

Adding to 1020429677 its reverse (7769240201), we get a palindrome (8789669878).

The spelling of 1020429677 in words is "one billion, twenty million, four hundred twenty-nine thousand, six hundred seventy-seven".