641417031 has 12 divisors (see below), whose sum is σ = 966773808. Its totient is φ = 409019424.

The previous prime is 641417027. The next prime is 641417033. The reversal of 641417031 is 130714146.

It is a happy number.

641417031 is a `hidden beast` number, since 641 + 4 + 17 + 0 + 3 + 1 = 666.

It is not a de Polignac number, because 641417031 - 2² = 641417027 is a prime.

It is a super-2 number, since 2×641417031² = 822831615313709922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 641416986 and 641417004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641417033) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1549110 + ... + 1549523.

It is an arithmetic number, because the mean of its divisors is an integer number (80564484).

Almost surely, 2^641417031 is an apocalyptic number.

641417031 is a deficient number, since it is larger than the sum of its proper divisors (325356777).

641417031 is a wasteful number, since it uses less digits than its factorization.

641417031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3098662 (or 3098659 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 641417031 is about 25326.2123303111. The cubic root of 641417031 is about 862.4094281705.

The spelling of 641417031 in words is "six hundred forty-one million, four hundred seventeen thousand, thirty-one".