981814477 has 8 divisors (see below), whose sum is σ = 1130640192. Its totient is φ = 835130400.

The previous prime is 981814441. The next prime is 981814487. The reversal of 981814477 is 774418189.

981814477 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 981814477 - 2¹⁵ = 981781709 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 981814477.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (981814487) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 534424 + ... + 536257.

It is an arithmetic number, because the mean of its divisors is an integer number (141330024).

Almost surely, 2^981814477 is an apocalyptic number.

It is an amenable number.

981814477 is a deficient number, since it is larger than the sum of its proper divisors (148825715).

981814477 is a wasteful number, since it uses less digits than its factorization.

981814477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1070819.

The product of its digits is 451584, while the sum is 49.

The square root of 981814477 is about 31333.9189537472. The cubic root of 981814477 is about 993.9010372754.

The spelling of 981814477 in words is "nine hundred eighty-one million, eight hundred fourteen thousand, four hundred seventy-seven".