981477494 has 16 divisors (see below), whose sum is σ = 1507358160. Its totient is φ = 479038560.

The previous prime is 981477491. The next prime is 981477533. The reversal of 981477494 is 494774189.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (981477491) 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, 244052 + ... + 248040.

It is an arithmetic number, because the mean of its divisors is an integer number (94209885).

Almost surely, 2^981477494 is an apocalyptic number.

981477494 is a deficient number, since it is larger than the sum of its proper divisors (525880666).

981477494 is a wasteful number, since it uses less digits than its factorization.

981477494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6895.

The product of its digits is 2032128, while the sum is 53.

The square root of 981477494 is about 31328.5412044672. The cubic root of 981477494 is about 993.7873137948.

The spelling of 981477494 in words is "nine hundred eighty-one million, four hundred seventy-seven thousand, four hundred ninety-four".