47070823 has 2 divisors, whose sum is σ = 47070824. Its totient is φ = 47070822.

The previous prime is 47070817. The next prime is 47070827. The reversal of 47070823 is 32807074.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 47070823 - 2⁵ = 47070791 is a prime.

It is equal to p_2835634 and since 47070823 and 2835634 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47070827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23535411 + 23535412.

It is an arithmetic number, because the mean of its divisors is an integer number (23535412).

Almost surely, 2^47070823 is an apocalyptic number.

47070823 is a deficient number, since it is larger than the sum of its proper divisors (1).

47070823 is an equidigital number, since it uses as much as digits as its factorization.

47070823 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9408, while the sum is 31.

The square root of 47070823 is about 6860.8179541509. The cubic root of 47070823 is about 361.0637850475.

Adding to 47070823 its reverse (32807074), we get a palindrome (79877897).

The spelling of 47070823 in words is "forty-seven million, seventy thousand, eight hundred twenty-three".