63423811 has 8 divisors (see below), whose sum is σ = 72198144. Its totient is φ = 55150920.

The previous prime is 63423797. The next prime is 63423823. The reversal of 63423811 is 11832436.

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

It is not a de Polignac number, because 63423811 - 2¹⁹ = 62899523 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 63423811.

It is not an unprimeable number, because it can be changed into a prime (63423851) 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, 125091 + ... + 125596.

It is an arithmetic number, because the mean of its divisors is an integer number (9024768).

Almost surely, 2^63423811 is an apocalyptic number.

63423811 is a deficient number, since it is larger than the sum of its proper divisors (8774333).

63423811 is a wasteful number, since it uses less digits than its factorization.

63423811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250721.

The product of its digits is 3456, while the sum is 28.

The square root of 63423811 is about 7963.9067674101. The cubic root of 63423811 is about 398.7959857605.

It can be divided in two parts, 6342 and 3811, that added together give a triangular number (10153 = T₁₄₂).

The spelling of 63423811 in words is "sixty-three million, four hundred twenty-three thousand, eight hundred eleven".