981487955 has 16 divisors (see below), whose sum is σ = 1349667264. Its totient is φ = 671207040.

The previous prime is 981487933. The next prime is 981487957. The reversal of 981487955 is 559784189.

It is not a de Polignac number, because 981487955 - 2¹⁰ = 981486931 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 981487955.

It is not an unprimeable number, because it can be changed into a prime (981487957) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24536 + ... + 50645.

It is an arithmetic number, because the mean of its divisors is an integer number (84354204).

Almost surely, 2^981487955 is an apocalyptic number.

981487955 is a deficient number, since it is larger than the sum of its proper divisors (368179309).

981487955 is a wasteful number, since it uses less digits than its factorization.

981487955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75566.

The product of its digits is 3628800, while the sum is 56.

The square root of 981487955 is about 31328.7081604078. The cubic root of 981487955 is about 993.7908445166.

The spelling of 981487955 in words is "nine hundred eighty-one million, four hundred eighty-seven thousand, nine hundred fifty-five".