20074277 has 2 divisors, whose sum is σ = 20074278. Its totient is φ = 20074276.

The previous prime is 20074273. The next prime is 20074283. The reversal of 20074277 is 77247002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18438436 + 1635841 = 4294^2 + 1279^2 .

It is a cyclic number.

It is not a de Polignac number, because 20074277 - 2² = 20074273 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20074273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10037138 + 10037139.

It is an arithmetic number, because the mean of its divisors is an integer number (10037139).

Almost surely, 2^20074277 is an apocalyptic number.

It is an amenable number.

20074277 is a deficient number, since it is larger than the sum of its proper divisors (1).

20074277 is an equidigital number, since it uses as much as digits as its factorization.

20074277 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5488, while the sum is 29.

The square root of 20074277 is about 4480.4326799987. The cubic root of 20074277 is about 271.7773778545. Note that the first 3 decimals are identical.

The spelling of 20074277 in words is "twenty million, seventy-four thousand, two hundred seventy-seven".