94220981 has 16 divisors (see below), whose sum is σ = 102946560. Its totient is φ = 85924800.

The previous prime is 94220977. The next prime is 94220983. The reversal of 94220981 is 18902249.

It is a cyclic number.

It is not a de Polignac number, because 94220981 - 2² = 94220977 is a prime.

It is a super-2 number, since 2×94220981² = 17755186521204722, which contains 22 as substring.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (94220983) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70340 + ... + 71666.

It is an arithmetic number, because the mean of its divisors is an integer number (6434160).

Almost surely, 2^94220981 is an apocalyptic number.

It is an amenable number.

94220981 is a deficient number, since it is larger than the sum of its proper divisors (8725579).

94220981 is a wasteful number, since it uses less digits than its factorization.

94220981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1484.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 94220981 is about 9706.7492498776. The cubic root of 94220981 is about 455.0396149544.

The spelling of 94220981 in words is "ninety-four million, two hundred twenty thousand, nine hundred eighty-one".