2028434797 has 2 divisors, whose sum is σ = 2028434798. Its totient is φ = 2028434796.

The previous prime is 2028434773. The next prime is 2028434827. The reversal of 2028434797 is 7974348202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1559539081 + 468895716 = 39491^2 + 21654^2 .

It is a cyclic number.

It is not a de Polignac number, because 2028434797 - 2²⁷ = 1894217069 is a prime.

It is a super-2 number, since 2×2028434797² = 8229095451360862418, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2028434717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1014217398 + 1014217399.

It is an arithmetic number, because the mean of its divisors is an integer number (1014217399).

Almost surely, 2^2028434797 is an apocalyptic number.

It is an amenable number.

2028434797 is a deficient number, since it is larger than the sum of its proper divisors (1).

2028434797 is an equidigital number, since it uses as much as digits as its factorization.

2028434797 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 677376, while the sum is 46.

The square root of 2028434797 is about 45038.1482412410. The cubic root of 2028434797 is about 1265.8639074734.

The spelling of 2028434797 in words is "two billion, twenty-eight million, four hundred thirty-four thousand, seven hundred ninety-seven".