928868047 has 2 divisors, whose sum is σ = 928868048. Its totient is φ = 928868046.

The previous prime is 928868021. The next prime is 928868071. The reversal of 928868047 is 740868829.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-928868047 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 928867985 and 928868003.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (928868077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 464434023 + 464434024.

It is an arithmetic number, because the mean of its divisors is an integer number (464434024).

Almost surely, 2^928868047 is an apocalyptic number.

928868047 is a deficient number, since it is larger than the sum of its proper divisors (1).

928868047 is an equidigital number, since it uses as much as digits as its factorization.

928868047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1548288, while the sum is 52.

The square root of 928868047 is about 30477.3366126373. The cubic root of 928868047 is about 975.7038256209.

The spelling of 928868047 in words is "nine hundred twenty-eight million, eight hundred sixty-eight thousand, forty-seven".