947508823 has 2 divisors, whose sum is σ = 947508824. Its totient is φ = 947508822.

The previous prime is 947508799. The next prime is 947508883. The reversal of 947508823 is 328805749.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-947508823 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (947508883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 473754411 + 473754412.

It is an arithmetic number, because the mean of its divisors is an integer number (473754412).

Almost surely, 2^947508823 is an apocalyptic number.

947508823 is a deficient number, since it is larger than the sum of its proper divisors (1).

947508823 is an equidigital number, since it uses as much as digits as its factorization.

947508823 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 483840, while the sum is 46.

The square root of 947508823 is about 30781.6312595678. The cubic root of 947508823 is about 982.1875411783.

The spelling of 947508823 in words is "nine hundred forty-seven million, five hundred eight thousand, eight hundred twenty-three".