1009477823 has 2 divisors, whose sum is σ = 1009477824. Its totient is φ = 1009477822.

The previous prime is 1009477793. The next prime is 1009477873. The reversal of 1009477823 is 3287749001.

It is a weak prime.

It is an emirp because it is prime and its reverse (3287749001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1009477823 - 2²² = 1005283519 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1009477873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 504738911 + 504738912.

It is an arithmetic number, because the mean of its divisors is an integer number (504738912).

Almost surely, 2^1009477823 is an apocalyptic number.

1009477823 is a deficient number, since it is larger than the sum of its proper divisors (1).

1009477823 is an equidigital number, since it uses as much as digits as its factorization.

1009477823 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84672, while the sum is 41.

The square root of 1009477823 is about 31772.2807333688. The cubic root of 1009477823 is about 1003.1493455438.

The spelling of 1009477823 in words is "one billion, nine million, four hundred seventy-seven thousand, eight hundred twenty-three".