20377043 has 2 divisors, whose sum is σ = 20377044. Its totient is φ = 20377042.

The previous prime is 20377037. The next prime is 20377087. The reversal of 20377043 is 34077302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20377043 - 2¹⁰ = 20376019 is a prime.

It is not a weakly prime, because it can be changed into another prime (20317043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10188521 + 10188522.

It is an arithmetic number, because the mean of its divisors is an integer number (10188522).

Almost surely, 2^20377043 is an apocalyptic number.

20377043 is a deficient number, since it is larger than the sum of its proper divisors (1).

20377043 is an equidigital number, since it uses as much as digits as its factorization.

20377043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3528, while the sum is 26.

The square root of 20377043 is about 4514.0938182541. The cubic root of 20377043 is about 273.1369070942.

The spelling of 20377043 in words is "twenty million, three hundred seventy-seven thousand, forty-three".