83147890 has 32 divisors (see below), whose sum is σ = 176569344. Its totient is φ = 27587520.

The previous prime is 83147879. The next prime is 83147893. The reversal of 83147890 is 9874138.

It is a super-2 number, since 2×83147890² = 13827143222904200, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (83147893) 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, 16989 + ... + 21328.

It is an arithmetic number, because the mean of its divisors is an integer number (5517792).

Almost surely, 2^83147890 is an apocalyptic number.

83147890 is an abundant number, since it is smaller than the sum of its proper divisors (93421454).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

83147890 is a wasteful number, since it uses less digits than its factorization.

83147890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38362.

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 83147890 is about 9118.5464850490. The cubic root of 83147890 is about 436.4659923899.

The spelling of 83147890 in words is "eighty-three million, one hundred forty-seven thousand, eight hundred ninety".