85374937 has 2 divisors, whose sum is σ = 85374938. Its totient is φ = 85374936.

The previous prime is 85374917. The next prime is 85374953. The reversal of 85374937 is 73947358.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 76230361 + 9144576 = 8731^2 + 3024^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85374937 is a prime.

It is not a weakly prime, because it can be changed into another prime (85374917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42687468 + 42687469.

It is an arithmetic number, because the mean of its divisors is an integer number (42687469).

Almost surely, 2^85374937 is an apocalyptic number.

It is an amenable number.

85374937 is a deficient number, since it is larger than the sum of its proper divisors (1).

85374937 is an equidigital number, since it uses as much as digits as its factorization.

85374937 is an evil number, because the sum of its binary digits is even.

The product of its digits is 635040, while the sum is 46.

The square root of 85374937 is about 9239.8558971447. The cubic root of 85374937 is about 440.3285029577.

The spelling of 85374937 in words is "eighty-five million, three hundred seventy-four thousand, nine hundred thirty-seven".