459973921 has 16 divisors (see below), whose sum is σ = 507057408. Its totient is φ = 413795200.

The previous prime is 459973861. The next prime is 459973931. The reversal of 459973921 is 129379954.

It is a cyclic number.

It is not a de Polignac number, because 459973921 - 2¹⁷ = 459842849 is a prime.

It is a super-2 number, since 2×459973921² = 423152016000228482, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (459973931) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 504456 + ... + 505366.

It is an arithmetic number, because the mean of its divisors is an integer number (31691088).

Almost surely, 2^459973921 is an apocalyptic number.

It is an amenable number.

459973921 is a deficient number, since it is larger than the sum of its proper divisors (47083487).

459973921 is a wasteful number, since it uses less digits than its factorization.

459973921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1352.

The product of its digits is 612360, while the sum is 49.

The square root of 459973921 is about 21447.0026110876. The cubic root of 459973921 is about 771.9296745920.

The spelling of 459973921 in words is "four hundred fifty-nine million, nine hundred seventy-three thousand, nine hundred twenty-one".