641062263 has 4 divisors (see below), whose sum is σ = 854749688. Its totient is φ = 427374840.

The previous prime is 641062229. The next prime is 641062297. The reversal of 641062263 is 362260146.

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

It is an interprime number because it is at equal distance from previous prime (641062229) and next prime (641062297).

It is not a de Polignac number, because 641062263 - 2¹² = 641058167 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 641062263.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641062063) 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, 106843708 + ... + 106843713.

It is an arithmetic number, because the mean of its divisors is an integer number (213687422).

Almost surely, 2^641062263 is an apocalyptic number.

641062263 is a deficient number, since it is larger than the sum of its proper divisors (213687425).

641062263 is a wasteful number, since it uses less digits than its factorization.

641062263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213687424.

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 641062263 is about 25319.2073928075. The cubic root of 641062263 is about 862.2503991880.

The spelling of 641062263 in words is "six hundred forty-one million, sixty-two thousand, two hundred sixty-three".