47321653 has 2 divisors, whose sum is σ = 47321654. Its totient is φ = 47321652.

The previous prime is 47321641. The next prime is 47321657. The reversal of 47321653 is 35612374.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43850884 + 3470769 = 6622^2 + 1863^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47321653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47321657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23660826 + 23660827.

It is an arithmetic number, because the mean of its divisors is an integer number (23660827).

Almost surely, 2^47321653 is an apocalyptic number.

It is an amenable number.

47321653 is a deficient number, since it is larger than the sum of its proper divisors (1).

47321653 is an equidigital number, since it uses as much as digits as its factorization.

47321653 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15120, while the sum is 31.

The square root of 47321653 is about 6879.0735568098. The cubic root of 47321653 is about 361.7039922213.

It can be divided in two parts, 47321 and 653, that added together give a palindrome (47974).

The spelling of 47321653 in words is "forty-seven million, three hundred twenty-one thousand, six hundred fifty-three".