283863947 has 2 divisors, whose sum is σ = 283863948. Its totient is φ = 283863946.

The previous prime is 283863917. The next prime is 283863961. The reversal of 283863947 is 749368382.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 283863947 - 2⁶ = 283863883 is a prime.

It is a super-3 number, since 3×283863947³ (a number of 26 digits) contains 333 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 283863895 and 283863904.

It is not a weakly prime, because it can be changed into another prime (283863917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 141931973 + 141931974.

It is an arithmetic number, because the mean of its divisors is an integer number (141931974).

Almost surely, 2^283863947 is an apocalyptic number.

283863947 is a deficient number, since it is larger than the sum of its proper divisors (1).

283863947 is an equidigital number, since it uses as much as digits as its factorization.

283863947 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1741824, while the sum is 50.

The square root of 283863947 is about 16848.2624326665. The cubic root of 283863947 is about 657.2088641524.

The spelling of 283863947 in words is "two hundred eighty-three million, eight hundred sixty-three thousand, nine hundred forty-seven".