20077313 has 2 divisors, whose sum is σ = 20077314. Its totient is φ = 20077312.

The previous prime is 20077307. The next prime is 20077327. The reversal of 20077313 is 31377002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13017664 + 7059649 = 3608^2 + 2657^2 .

It is a cyclic number.

It is not a de Polignac number, because 20077313 - 2²² = 15883009 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (20077333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10038656 + 10038657.

It is an arithmetic number, because the mean of its divisors is an integer number (10038657).

Almost surely, 2^20077313 is an apocalyptic number.

It is an amenable number.

20077313 is a deficient number, since it is larger than the sum of its proper divisors (1).

20077313 is an equidigital number, since it uses as much as digits as its factorization.

20077313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 882, while the sum is 23.

The square root of 20077313 is about 4480.7714737532. The cubic root of 20077313 is about 271.7910782155.

The spelling of 20077313 in words is "twenty million, seventy-seven thousand, three hundred thirteen".