985040377 has 2 divisors, whose sum is σ = 985040378. Its totient is φ = 985040376.

The previous prime is 985040359. The next prime is 985040387. The reversal of 985040377 is 773040589.

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., 756305001 + 228735376 = 27501^2 + 15124^2 .

It is a cyclic number.

It is not a de Polignac number, because 985040377 - 2²⁷ = 850822649 is a prime.

It is not a weakly prime, because it can be changed into another prime (985040387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 492520188 + 492520189.

It is an arithmetic number, because the mean of its divisors is an integer number (492520189).

Almost surely, 2^985040377 is an apocalyptic number.

It is an amenable number.

985040377 is a deficient number, since it is larger than the sum of its proper divisors (1).

985040377 is an equidigital number, since it uses as much as digits as its factorization.

985040377 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 211680, while the sum is 43.

The square root of 985040377 is about 31385.3529054558. The cubic root of 985040377 is about 994.9883846695.

The spelling of 985040377 in words is "nine hundred eighty-five million, forty thousand, three hundred seventy-seven".