1023947 has 2 divisors, whose sum is σ = 1023948. Its totient is φ = 1023946.

The previous prime is 1023943. The next prime is 1023949. The reversal of 1023947 is 7493201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1023947 - 2² = 1023943 is a prime.

Together with 1023949, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1023941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511973 + 511974.

It is an arithmetic number, because the mean of its divisors is an integer number (511974).

2^1023947 is an apocalyptic number.

1023947 is a deficient number, since it is larger than the sum of its proper divisors (1).

1023947 is an equidigital number, since it uses as much as digits as its factorization.

1023947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 1023947 is about 1011.9026633031. The cubic root of 1023947 is about 100.7919450081.

The spelling of 1023947 in words is "one million, twenty-three thousand, nine hundred forty-seven".