981227407 has 16 divisors (see below), whose sum is σ = 1034127360. Its totient is φ = 929786400.

The previous prime is 981227381. The next prime is 981227419. The reversal of 981227407 is 704722189.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-981227407 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 981227407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (981224407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 534982 + ... + 536812.

It is an arithmetic number, because the mean of its divisors is an integer number (64632960).

Almost surely, 2^981227407 is an apocalyptic number.

981227407 is a deficient number, since it is larger than the sum of its proper divisors (52899953).

981227407 is a wasteful number, since it uses less digits than its factorization.

981227407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2214.

The product of its (nonzero) digits is 56448, while the sum is 40.

The square root of 981227407 is about 31324.5495897387. The cubic root of 981227407 is about 993.7028987498.

The spelling of 981227407 in words is "nine hundred eighty-one million, two hundred twenty-seven thousand, four hundred seven".