83947286 has 16 divisors (see below), whose sum is σ = 135928800. Its totient is φ = 38763648.

The previous prime is 83947277. The next prime is 83947291. The reversal of 83947286 is 68274938.

It is a self number, because there is not a number n which added to its sum of digits gives 83947286.

It is a congruent number.

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, 30131 + ... + 32798.

It is an arithmetic number, because the mean of its divisors is an integer number (8495550).

Almost surely, 2^83947286 is an apocalyptic number.

83947286 is a deficient number, since it is larger than the sum of its proper divisors (51981514).

83947286 is a wasteful number, since it uses less digits than its factorization.

83947286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62983.

The product of its digits is 580608, while the sum is 47.

The square root of 83947286 is about 9162.2751541307. The cubic root of 83947286 is about 437.8602829249.

The spelling of 83947286 in words is "eighty-three million, nine hundred forty-seven thousand, two hundred eighty-six".