481964647 has 4 divisors (see below), whose sum is σ = 482178960. Its totient is φ = 481750336.

The previous prime is 481964633. The next prime is 481964689. The reversal of 481964647 is 746469184.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 481964647 - 2¹¹ = 481962599 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 481964647.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (481961647) 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, 103747 + ... + 108292.

It is an arithmetic number, because the mean of its divisors is an integer number (120544740).

Almost surely, 2^481964647 is an apocalyptic number.

481964647 is a deficient number, since it is larger than the sum of its proper divisors (214313).

481964647 is a wasteful number, since it uses less digits than its factorization.

481964647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214312.

The product of its digits is 1161216, while the sum is 49.

The square root of 481964647 is about 21953.6932428236. The cubic root of 481964647 is about 784.0403147871.

The spelling of 481964647 in words is "four hundred eighty-one million, nine hundred sixty-four thousand, six hundred forty-seven".