464971421 has 4 divisors (see below), whose sum is σ = 466045692. Its totient is φ = 463897152.

The previous prime is 464971399. The next prime is 464971457. The reversal of 464971421 is 124179464.

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

It can be written as a sum of positive squares in 2 ways, for example, as 116402521 + 348568900 = 10789^2 + 18670^2 .

It is a cyclic number.

It is not a de Polignac number, because 464971421 - 2¹⁴ = 464955037 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 (464971321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 536486 + ... + 537351.

It is an arithmetic number, because the mean of its divisors is an integer number (116511423).

Almost surely, 2^464971421 is an apocalyptic number.

It is an amenable number.

464971421 is a deficient number, since it is larger than the sum of its proper divisors (1074271).

464971421 is a wasteful number, since it uses less digits than its factorization.

464971421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1074270.

The product of its digits is 48384, while the sum is 38.

The square root of 464971421 is about 21563.1959829706. The cubic root of 464971421 is about 774.7152174613.

It can be divided in two parts, 464971 and 421, that multiplied together give a triangular number (195752791 = T₁₉₇₈₆).

The spelling of 464971421 in words is "four hundred sixty-four million, nine hundred seventy-one thousand, four hundred twenty-one".