83618842 has 16 divisors (see below), whose sum is σ = 131922432. Its totient is φ = 39695760.

The previous prime is 83618833. The next prime is 83618863. The reversal of 83618842 is 24881638.

It is a super-2 number, since 2×83618842² = 13984221474841928, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 83618795 and 83618804.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9438 + ... + 16009.

It is an arithmetic number, because the mean of its divisors is an integer number (8245152).

Almost surely, 2^83618842 is an apocalyptic number.

83618842 is a deficient number, since it is larger than the sum of its proper divisors (48303590).

83618842 is a wasteful number, since it uses less digits than its factorization.

83618842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25533.

The product of its digits is 73728, while the sum is 40.

The square root of 83618842 is about 9144.3338740446. Note that the first 3 decimals coincide. The cubic root of 83618842 is about 437.2884933567.

The spelling of 83618842 in words is "eighty-three million, six hundred eighteen thousand, eight hundred forty-two".