31473413 has 2 divisors, whose sum is σ = 31473414. Its totient is φ = 31473412.

The previous prime is 31473397. The next prime is 31473437. The reversal of 31473413 is 31437413.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24930049 + 6543364 = 4993^2 + 2558^2 .

It is a cyclic number.

It is not a de Polignac number, because 31473413 - 2⁴ = 31473397 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31473313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15736706 + 15736707.

It is an arithmetic number, because the mean of its divisors is an integer number (15736707).

Almost surely, 2^31473413 is an apocalyptic number.

It is an amenable number.

31473413 is a deficient number, since it is larger than the sum of its proper divisors (1).

31473413 is an equidigital number, since it uses as much as digits as its factorization.

31473413 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3024, while the sum is 26.

The square root of 31473413 is about 5610.1170219524. The cubic root of 31473413 is about 315.7291014057.

The spelling of 31473413 in words is "thirty-one million, four hundred seventy-three thousand, four hundred thirteen".