85374613 has 2 divisors, whose sum is σ = 85374614. Its totient is φ = 85374612.

The previous prime is 85374599. The next prime is 85374649. The reversal of 85374613 is 31647358.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 58094884 + 27279729 = 7622^2 + 5223^2 .

It is a cyclic number.

It is not a de Polignac number, because 85374613 - 2⁹ = 85374101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85374313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42687306 + 42687307.

It is an arithmetic number, because the mean of its divisors is an integer number (42687307).

Almost surely, 2^85374613 is an apocalyptic number.

It is an amenable number.

85374613 is a deficient number, since it is larger than the sum of its proper divisors (1).

85374613 is an equidigital number, since it uses as much as digits as its factorization.

85374613 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60480, while the sum is 37.

The square root of 85374613 is about 9239.8383643871. The cubic root of 85374613 is about 440.3279459378.

It can be divided in two parts, 853 and 74613, that added together give a triangular number (75466 = T₃₈₈).

The spelling of 85374613 in words is "eighty-five million, three hundred seventy-four thousand, six hundred thirteen".