264634947 has 18 divisors (see below), whose sum is σ = 395897372. Its totient is φ = 170334864.

The previous prime is 264634939. The next prime is 264634949. The reversal of 264634947 is 749436462.

It is a happy number.

264634947 is a `hidden beast` number, since 2 + 6 + 4 + 634 + 9 + 4 + 7 = 666.

It is not a de Polignac number, because 264634947 - 2³ = 264634939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (264634949) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 9913 + ... + 25050.

Almost surely, 2^264634947 is an apocalyptic number.

264634947 is a deficient number, since it is larger than the sum of its proper divisors (131262425).

264634947 is a wasteful number, since it uses less digits than its factorization.

264634947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35027 (or 34995 counting only the distinct ones).

The product of its digits is 870912, while the sum is 45.

The square root of 264634947 is about 16267.6042182000. The cubic root of 264634947 is about 642.0207507777.

The spelling of 264634947 in words is "two hundred sixty-four million, six hundred thirty-four thousand, nine hundred forty-seven".