63402023 has 4 divisors (see below), whose sum is σ = 63419928. Its totient is φ = 63384120.

The previous prime is 63401983. The next prime is 63402041. The reversal of 63402023 is 32020436.

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

It is a cyclic number.

It is not a de Polignac number, because 63402023 - 2¹⁰ = 63400999 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 63401986 and 63402004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33402023) 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, 1661 + ... + 11382.

It is an arithmetic number, because the mean of its divisors is an integer number (15854982).

Almost surely, 2^63402023 is an apocalyptic number.

63402023 is a deficient number, since it is larger than the sum of its proper divisors (17905).

63402023 is a wasteful number, since it uses less digits than its factorization.

63402023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17904.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 63402023 is about 7962.5387283203. The cubic root of 63402023 is about 398.7503143638.

Adding to 63402023 its reverse (32020436), we get a palindrome (95422459).

The spelling of 63402023 in words is "sixty-three million, four hundred two thousand, twenty-three".