981477264 has 20 divisors (see below), whose sum is σ = 2535483056. Its totient is φ = 327159072.

The previous prime is 981477253. The next prime is 981477271. The reversal of 981477264 is 462774189.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 20447443 = 981477264 / (9 + 8 + 1 + 4 + 7 + 7 + 2 + 6 + 4).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10223674 + ... + 10223769.

Almost surely, 2^981477264 is an apocalyptic number.

It is an amenable number.

981477264 is an abundant number, since it is smaller than the sum of its proper divisors (1554005792).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

981477264 is a wasteful number, since it uses less digits than its factorization.

981477264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20447454 (or 20447448 counting only the distinct ones).

The product of its digits is 677376, while the sum is 48.

The square root of 981477264 is about 31328.5375336928. The cubic root of 981477264 is about 993.7872361665.

It can be divided in two parts, 9814 and 77264, that added together give a palindrome (87078).

The spelling of 981477264 in words is "nine hundred eighty-one million, four hundred seventy-seven thousand, two hundred sixty-four".