83678930 has 32 divisors (see below), whose sum is σ = 160148016. Its totient is φ = 31371264.

The previous prime is 83678929. The next prime is 83678939. The reversal of 83678930 is 3987638.

It can be written as a sum of positive squares in 8 ways, for example, as 33651601 + 50027329 = 5801^2 + 7073^2 .

It is not an unprimeable number, because it can be changed into a prime (83678939) 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, 46202 + ... + 47978.

Almost surely, 2^83678930 is an apocalyptic number.

83678930 is a deficient number, since it is larger than the sum of its proper divisors (76469086).

83678930 is a wasteful number, since it uses less digits than its factorization.

83678930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2078.

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 83678930 is about 9147.6188158449. The cubic root of 83678930 is about 437.3932125763.

The spelling of 83678930 in words is "eighty-three million, six hundred seventy-eight thousand, nine hundred thirty".