2031977 has 2 divisors, whose sum is σ = 2031978. Its totient is φ = 2031976.

The previous prime is 2031961. The next prime is 2031979. The reversal of 2031977 is 7791302.

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., 1597696 + 434281 = 1264^2 + 659^2 .

It is a cyclic number.

It is not a de Polignac number, because 2031977 - 2⁴ = 2031961 is a prime.

Together with 2031979, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2031979) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1015988 + 1015989.

It is an arithmetic number, because the mean of its divisors is an integer number (1015989).

2^2031977 is an apocalyptic number.

It is an amenable number.

2031977 is a deficient number, since it is larger than the sum of its proper divisors (1).

2031977 is an equidigital number, since it uses as much as digits as its factorization.

2031977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2646, while the sum is 29.

The square root of 2031977 is about 1425.4743070291. The cubic root of 2031977 is about 126.6600327397.

The spelling of 2031977 in words is "two million, thirty-one thousand, nine hundred seventy-seven".