462523021 has 4 divisors (see below), whose sum is σ = 462668544. Its totient is φ = 462377500.

The previous prime is 462523003. The next prime is 462523057. The reversal of 462523021 is 120325264.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 462523021 - 2¹¹ = 462520973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (462583021) 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, 67885 + ... + 74386.

It is an arithmetic number, because the mean of its divisors is an integer number (115667136).

Almost surely, 2^462523021 is an apocalyptic number.

It is an amenable number.

462523021 is a deficient number, since it is larger than the sum of its proper divisors (145523).

462523021 is a wasteful number, since it uses less digits than its factorization.

462523021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145522.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 462523021 is about 21506.3483883248. The cubic root of 462523021 is about 773.3530177106.

Adding to 462523021 its reverse (120325264), we get a palindrome (582848285).

The spelling of 462523021 in words is "four hundred sixty-two million, five hundred twenty-three thousand, twenty-one".