85040377 has 2 divisors, whose sum is σ = 85040378. Its totient is φ = 85040376.

The previous prime is 85040359. The next prime is 85040387. The reversal of 85040377 is 77304058.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 59274601 + 25765776 = 7699^2 + 5076^2 .

It is a cyclic number.

It is not a de Polignac number, because 85040377 - 2¹¹ = 85038329 is a prime.

It is not a weakly prime, because it can be changed into another prime (85040327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42520188 + 42520189.

It is an arithmetic number, because the mean of its divisors is an integer number (42520189).

Almost surely, 2^85040377 is an apocalyptic number.

It is an amenable number.

85040377 is a deficient number, since it is larger than the sum of its proper divisors (1).

85040377 is an equidigital number, since it uses as much as digits as its factorization.

85040377 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23520, while the sum is 34.

The square root of 85040377 is about 9221.7339475827. The cubic root of 85040377 is about 439.7525761133.

The spelling of 85040377 in words is "eighty-five million, forty thousand, three hundred seventy-seven".