8260428947 has 4 divisors (see below), whose sum is σ = 8274501816. Its totient is φ = 8246356080.

The previous prime is 8260428941. The next prime is 8260428959. The reversal of 8260428947 is 7498240628.

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 8260428947 - 2⁸ = 8260428691 is a prime.

It is a super-3 number, since 3×8260428947³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8260428895 and 8260428904.

It is not an unprimeable number, because it can be changed into a prime (8260428941) 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, 7035554 + ... + 7036727.

It is an arithmetic number, because the mean of its divisors is an integer number (2068625454).

Almost surely, 2^8260428947 is an apocalyptic number.

8260428947 is a deficient number, since it is larger than the sum of its proper divisors (14072869).

8260428947 is a wasteful number, since it uses less digits than its factorization.

8260428947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14072868.

The product of its (nonzero) digits is 1548288, while the sum is 50.

The square root of 8260428947 is about 90886.9019551222. The cubic root of 8260428947 is about 2021.4710836722.

The spelling of 8260428947 in words is "eight billion, two hundred sixty million, four hundred twenty-eight thousand, nine hundred forty-seven".