981477265 has 16 divisors (see below), whose sum is σ = 1205031168. Its totient is φ = 767070976.

The previous prime is 981477253. The next prime is 981477271. The reversal of 981477265 is 562774189.

It is a cyclic number.

It is not a de Polignac number, because 981477265 - 2⁹ = 981476753 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135834 + ... + 142876.

It is an arithmetic number, because the mean of its divisors is an integer number (75314448).

Almost surely, 2^981477265 is an apocalyptic number.

It is an amenable number.

981477265 is a deficient number, since it is larger than the sum of its proper divisors (223553903).

981477265 is a wasteful number, since it uses less digits than its factorization.

981477265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7688.

The product of its digits is 846720, while the sum is 49.

The square root of 981477265 is about 31328.5375496527. The cubic root of 981477265 is about 993.7872365040.

The spelling of 981477265 in words is "nine hundred eighty-one million, four hundred seventy-seven thousand, two hundred sixty-five".