4591631 has 8 divisors (see below), whose sum is σ = 5131728. Its totient is φ = 4072000.

The previous prime is 4591621. The next prime is 4591633. The reversal of 4591631 is 1361954.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4591631 - 2⁶ = 4591567 is a prime.

It is a super-2 number, since 2×4591631² = 42166150480322, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4591594 and 4591603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4591633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4640 + ... + 5541.

It is an arithmetic number, because the mean of its divisors is an integer number (641466).

Almost surely, 2^4591631 is an apocalyptic number.

4591631 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

4591631 is a deficient number, since it is larger than the sum of its proper divisors (540097).

4591631 is a wasteful number, since it uses less digits than its factorization.

4591631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10233.

The product of its digits is 3240, while the sum is 29.

The square root of 4591631 is about 2142.8091375575. The cubic root of 4591631 is about 166.2094298653.

The spelling of 4591631 in words is "four million, five hundred ninety-one thousand, six hundred thirty-one".