476143921 has 16 divisors (see below), whose sum is σ = 526209408. Its totient is φ = 427248000.

The previous prime is 476143903. The next prime is 476143951. The reversal of 476143921 is 129341674.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-476143921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (476143951) 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, 286525 + ... + 288181.

It is an arithmetic number, because the mean of its divisors is an integer number (32888088).

Almost surely, 2^476143921 is an apocalyptic number.

It is an amenable number.

476143921 is a deficient number, since it is larger than the sum of its proper divisors (50065487).

476143921 is a wasteful number, since it uses less digits than its factorization.

476143921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1992.

The product of its digits is 36288, while the sum is 37.

The square root of 476143921 is about 21820.7222841042. The cubic root of 476143921 is about 780.8712164346.

The spelling of 476143921 in words is "four hundred seventy-six million, one hundred forty-three thousand, nine hundred twenty-one".