476214721 has 4 divisors (see below), whose sum is σ = 476488132. Its totient is φ = 475941312.

The previous prime is 476214677. The next prime is 476214731. The reversal of 476214721 is 127412674.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 127412674 = 2 ⋅63706337.

It can be written as a sum of positive squares in 2 ways, for example, as 32901696 + 443313025 = 5736^2 + 21055^2 .

It is a cyclic number.

It is not a de Polignac number, because 476214721 - 2¹⁷ = 476083649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (476214731) 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, 134076 + ... + 137581.

It is an arithmetic number, because the mean of its divisors is an integer number (119122033).

Almost surely, 2^476214721 is an apocalyptic number.

It is an amenable number.

476214721 is a deficient number, since it is larger than the sum of its proper divisors (273411).

476214721 is a wasteful number, since it uses less digits than its factorization.

476214721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273410.

The product of its digits is 18816, while the sum is 34.

The square root of 476214721 is about 21822.3445349028. The cubic root of 476214721 is about 780.9099182778.

The spelling of 476214721 in words is "four hundred seventy-six million, two hundred fourteen thousand, seven hundred twenty-one".