471946957 has 4 divisors (see below), whose sum is σ = 488221020. Its totient is φ = 455672896.

The previous prime is 471946939. The next prime is 471946961. The reversal of 471946957 is 759649174.

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 108701476 + 363245481 = 10426^2 + 19059^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-471946957 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 (471946907) 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, 8136988 + ... + 8137045.

It is an arithmetic number, because the mean of its divisors is an integer number (122055255).

Almost surely, 2^471946957 is an apocalyptic number.

It is an amenable number.

471946957 is a deficient number, since it is larger than the sum of its proper divisors (16274063).

471946957 is a wasteful number, since it uses less digits than its factorization.

471946957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16274062.

The product of its digits is 1905120, while the sum is 52.

The square root of 471946957 is about 21724.3401971153. The cubic root of 471946957 is about 778.5701159508.

The spelling of 471946957 in words is "four hundred seventy-one million, nine hundred forty-six thousand, nine hundred fifty-seven".