641467 has 2 divisors, whose sum is σ = 641468. Its totient is φ = 641466.

The previous prime is 641453. The next prime is 641471. The reversal of 641467 is 764146.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-641467 is a prime.

It is a super-2 number, since 2×641467² = 822959824178, which contains 22 as substring.

It is a nialpdrome in base 7.

It is not a weakly prime, because it can be changed into another prime (641437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 320733 + 320734.

It is an arithmetic number, because the mean of its divisors is an integer number (320734).

2⁶⁴¹⁴⁶⁷ is an apocalyptic number.

641467 is a deficient number, since it is larger than the sum of its proper divisors (1).

641467 is an equidigital number, since it uses as much as digits as its factorization.

641467 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4032, while the sum is 28.

The square root of 641467 is about 800.9163501890. The cubic root of 641467 is about 86.2431822658.

The spelling of 641467 in words is "six hundred forty-one thousand, four hundred sixty-seven".