2028273497 has 2 divisors, whose sum is σ = 2028273498. Its totient is φ = 2028273496.

The previous prime is 2028273473. The next prime is 2028273509. The reversal of 2028273497 is 7943728202.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2023560256 + 4713241 = 44984^2 + 2171^2 .

It is a cyclic number.

It is not a de Polignac number, because 2028273497 - 2²⁴ = 2011496281 is a prime.

It is a super-2 number, since 2×2028273497² = 8227786757265218018, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2028273197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1014136748 + 1014136749.

It is an arithmetic number, because the mean of its divisors is an integer number (1014136749).

Almost surely, 2^2028273497 is an apocalyptic number.

It is an amenable number.

2028273497 is a deficient number, since it is larger than the sum of its proper divisors (1).

2028273497 is an equidigital number, since it uses as much as digits as its factorization.

2028273497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 338688, while the sum is 44.

The square root of 2028273497 is about 45036.3575014676. The cubic root of 2028273497 is about 1265.8303529874.

The spelling of 2028273497 in words is "two billion, twenty-eight million, two hundred seventy-three thousand, four hundred ninety-seven".