470516981 has 4 divisors (see below), whose sum is σ = 513291264. Its totient is φ = 427742700.

The previous prime is 470516933. The next prime is 470516983. The reversal of 470516981 is 189615074.

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 not a de Polignac number, because 470516981 - 2¹⁰ = 470515957 is a prime.

It is a super-2 number, since 2×470516981² = 442772458818708722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (470516983) 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, 21387125 + ... + 21387146.

It is an arithmetic number, because the mean of its divisors is an integer number (128322816).

Almost surely, 2^470516981 is an apocalyptic number.

It is an amenable number.

470516981 is a deficient number, since it is larger than the sum of its proper divisors (42774283).

470516981 is a wasteful number, since it uses less digits than its factorization.

470516981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42774282.

The product of its (nonzero) digits is 60480, while the sum is 41.

The square root of 470516981 is about 21691.4033893614. The cubic root of 470516981 is about 777.7829774021.

The spelling of 470516981 in words is "four hundred seventy million, five hundred sixteen thousand, nine hundred eighty-one".