2039971 has 2 divisors, whose sum is σ = 2039972. Its totient is φ = 2039970.

The previous prime is 2039957. The next prime is 2039977. The reversal of 2039971 is 1799302.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2039971 - 2¹³ = 2031779 is a prime.

It is a super-2 number, since 2×2039971² = 8322963361682, which contains 22 as substring.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (2039977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1019985 + 1019986.

It is an arithmetic number, because the mean of its divisors is an integer number (1019986).

2^2039971 is an apocalyptic number.

2039971 is a deficient number, since it is larger than the sum of its proper divisors (1).

2039971 is an equidigital number, since it uses as much as digits as its factorization.

2039971 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3402, while the sum is 31.

The square root of 2039971 is about 1428.2755336419. The cubic root of 2039971 is about 126.8259131295.

The spelling of 2039971 in words is "two million, thirty-nine thousand, nine hundred seventy-one".