946898981 has 24 divisors (see below), whose sum is σ = 1149756120. Its totient is φ = 776573952.

The previous prime is 946898969. The next prime is 946898993. The reversal of 946898981 is 189898649.

It is an interprime number because it is at equal distance from previous prime (946898969) and next prime (946898993).

It can be written as a sum of positive squares in 4 ways, for example, as 98109025 + 848789956 = 9905^2 + 29134^2 .

It is not a de Polignac number, because 946898981 - 2¹⁰ = 946897957 is a prime.

It is a super-2 number, since 2×946898981² = 1793235360437676722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (946898921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 157625 + ... + 163521.

It is an arithmetic number, because the mean of its divisors is an integer number (47906505).

Almost surely, 2^946898981 is an apocalyptic number.

It is an amenable number.

946898981 is a deficient number, since it is larger than the sum of its proper divisors (202857139).

946898981 is a wasteful number, since it uses less digits than its factorization.

946898981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6053 (or 6046 counting only the distinct ones).

The product of its digits is 8957952, while the sum is 62.

The square root of 946898981 is about 30771.7237248744. The cubic root of 946898981 is about 981.9767752370.

The spelling of 946898981 in words is "nine hundred forty-six million, eight hundred ninety-eight thousand, nine hundred eighty-one".