4071631 has 4 divisors (see below), whose sum is σ = 4084264. Its totient is φ = 4059000.

The previous prime is 4071601. The next prime is 4071647. The reversal of 4071631 is 1361704.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4071631 is a prime.

It is a super-2 number, since 2×4071631² = 33156358000322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4071601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5820 + ... + 6481.

It is an arithmetic number, because the mean of its divisors is an integer number (1021066).

Almost surely, 2^4071631 is an apocalyptic number.

4071631 is a deficient number, since it is larger than the sum of its proper divisors (12633).

4071631 is a wasteful number, since it uses less digits than its factorization.

4071631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12632.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 4071631 is about 2017.8282880364. The cubic root of 4071631 is about 159.6820639602.

The spelling of 4071631 in words is "four million, seventy-one thousand, six hundred thirty-one".