4037961 has 4 divisors (see below), whose sum is σ = 5383952. Its totient is φ = 2691972.

The previous prime is 4037953. The next prime is 4037963. The reversal of 4037961 is 1697304.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 4037961 - 2³ = 4037953 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4037963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 672991 + ... + 672996.

It is an arithmetic number, because the mean of its divisors is an integer number (1345988).

Almost surely, 2^4037961 is an apocalyptic number.

It is an amenable number.

4037961 is a deficient number, since it is larger than the sum of its proper divisors (1345991).

4037961 is a wasteful number, since it uses less digits than its factorization.

4037961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1345990.

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 4037961 is about 2009.4678400014. The cubic root of 4037961 is about 159.2406860693.

The spelling of 4037961 in words is "four million, thirty-seven thousand, nine hundred sixty-one".