463921261 has 2 divisors, whose sum is σ = 463921262. Its totient is φ = 463921260.

The previous prime is 463921219. The next prime is 463921267. The reversal of 463921261 is 162129364.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 243547236 + 220374025 = 15606^2 + 14845^2 .

It is a cyclic number.

It is not a de Polignac number, because 463921261 - 2¹⁷ = 463790189 is a prime.

It is a super-3 number, since 3×463921261³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (463921267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 231960630 + 231960631.

It is an arithmetic number, because the mean of its divisors is an integer number (231960631).

Almost surely, 2^463921261 is an apocalyptic number.

It is an amenable number.

463921261 is a deficient number, since it is larger than the sum of its proper divisors (1).

463921261 is an equidigital number, since it uses as much as digits as its factorization.

463921261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15552, while the sum is 34.

The square root of 463921261 is about 21538.8314678397. The cubic root of 463921261 is about 774.1315341316.

The spelling of 463921261 in words is "four hundred sixty-three million, nine hundred twenty-one thousand, two hundred sixty-one".