9420643084 has 24 divisors (see below), whose sum is σ = 16626487808. Its totient is φ = 4670265600.

The previous prime is 9420643081. The next prime is 9420643087. The reversal of 9420643084 is 4803460249.

It is an interprime number because it is at equal distance from previous prime (9420643081) and next prime (9420643087).

It is a super-2 number, since 2×9420643084² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (9420643081) 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, 946534 + ... + 956434.

Almost surely, 2^9420643084 is an apocalyptic number.

It is an amenable number.

9420643084 is a deficient number, since it is larger than the sum of its proper divisors (7205844724).

9420643084 is a wasteful number, since it uses less digits than its factorization.

9420643084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11905 (or 11903 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 40.

The square root of 9420643084 is about 97059.9973418504. The cubic root of 9420643084 is about 2111.9980686942.

The spelling of 9420643084 in words is "nine billion, four hundred twenty million, six hundred forty-three thousand, eighty-four".