929147947 has 12 divisors (see below), whose sum is σ = 1163988336. Its totient is φ = 735149520.

The previous prime is 929147927. The next prime is 929147953. The reversal of 929147947 is 749741929.

It is not a de Polignac number, because 929147947 - 2¹⁹ = 928623659 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 929147894 and 929147903.

It is not an unprimeable number, because it can be changed into a prime (929147917) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 728679 + ... + 729952.

It is an arithmetic number, because the mean of its divisors is an integer number (96999028).

Almost surely, 2^929147947 is an apocalyptic number.

929147947 is a deficient number, since it is larger than the sum of its proper divisors (234840389).

929147947 is a wasteful number, since it uses less digits than its factorization.

929147947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1458658 (or 1458651 counting only the distinct ones).

The product of its digits is 1143072, while the sum is 52.

The square root of 929147947 is about 30481.9282034454. The cubic root of 929147947 is about 975.8018201907.

The spelling of 929147947 in words is "nine hundred twenty-nine million, one hundred forty-seven thousand, nine hundred forty-seven".