980985377 has 4 divisors (see below), whose sum is σ = 981120900. Its totient is φ = 980849856.

The previous prime is 980985367. The next prime is 980985413. The reversal of 980985377 is 773589089.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 845123041 + 135862336 = 29071^2 + 11656^2 .

It is a cyclic number.

It is not a de Polignac number, because 980985377 - 2⁴ = 980985361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (980985367) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56252 + ... + 71597.

It is an arithmetic number, because the mean of its divisors is an integer number (245280225).

Almost surely, 2^980985377 is an apocalyptic number.

It is an amenable number.

980985377 is a deficient number, since it is larger than the sum of its proper divisors (135523).

980985377 is a wasteful number, since it uses less digits than its factorization.

980985377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135522.

The product of its (nonzero) digits is 3810240, while the sum is 56.

The square root of 980985377 is about 31320.6860876322. The cubic root of 980985377 is about 993.6211896278.

The spelling of 980985377 in words is "nine hundred eighty million, nine hundred eighty-five thousand, three hundred seventy-seven".