981907061 has 8 divisors (see below), whose sum is σ = 1039778880. Its totient is φ = 924654528.

The previous prime is 981907049. The next prime is 981907079. The reversal of 981907061 is 160709189.

It is a happy number.

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 981907061 - 2⁶ = 981906997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (981903061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 151556 + ... + 157901.

It is an arithmetic number, because the mean of its divisors is an integer number (129972360).

Almost surely, 2^981907061 is an apocalyptic number.

It is an amenable number.

981907061 is a deficient number, since it is larger than the sum of its proper divisors (57871819).

981907061 is a wasteful number, since it uses less digits than its factorization.

981907061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309643.

The product of its (nonzero) digits is 27216, while the sum is 41.

The square root of 981907061 is about 31335.3962955633. The cubic root of 981907061 is about 993.9322775431.

The spelling of 981907061 in words is "nine hundred eighty-one million, nine hundred seven thousand, sixty-one".