83146988 has 6 divisors (see below), whose sum is σ = 145507236. Its totient is φ = 41573492.

The previous prime is 83146981. The next prime is 83147003. The reversal of 83146988 is 88964138.

It is a super-2 number, since 2×83146988² = 13826843226944288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (83146981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10393370 + ... + 10393377.

It is an arithmetic number, because the mean of its divisors is an integer number (24251206).

Almost surely, 2^83146988 is an apocalyptic number.

It is an amenable number.

83146988 is a deficient number, since it is larger than the sum of its proper divisors (62360248).

83146988 is a wasteful number, since it uses less digits than its factorization.

83146988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20786751 (or 20786749 counting only the distinct ones).

The product of its digits is 331776, while the sum is 47.

The square root of 83146988 is about 9118.4970252778. The cubic root of 83146988 is about 436.4644141027.

The spelling of 83146988 in words is "eighty-three million, one hundred forty-six thousand, nine hundred eighty-eight".