2039961 has 16 divisors (see below), whose sum is σ = 3391488. Its totient is φ = 1059600.

The previous prime is 2039957. The next prime is 2039971. The reversal of 2039961 is 1699302.

It is not a de Polignac number, because 2039961 - 2² = 2039957 is a prime.

It is a super-2 number, since 2×2039961² = 8322881763042, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2039911) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4185 + ... + 4646.

It is an arithmetic number, because the mean of its divisors is an integer number (211968).

2^2039961 is an apocalyptic number.

2039961 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2039961 is a deficient number, since it is larger than the sum of its proper divisors (1351527).

2039961 is a wasteful number, since it uses less digits than its factorization.

2039961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8852.

The product of its (nonzero) digits is 2916, while the sum is 30.

The square root of 2039961 is about 1428.2720329125. The cubic root of 2039961 is about 126.8257058944.

The spelling of 2039961 in words is "two million, thirty-nine thousand, nine hundred sixty-one".