83678531 has 8 divisors (see below), whose sum is σ = 87408384. Its totient is φ = 79956360.

The previous prime is 83678501. The next prime is 83678533. The reversal of 83678531 is 13587638.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 83678531 - 2¹⁸ = 83416387 is a prime.

It is a super-2 number, since 2×83678531² = 14004193100635922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83678533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41120 + ... + 43106.

It is an arithmetic number, because the mean of its divisors is an integer number (10926048).

Almost surely, 2^83678531 is an apocalyptic number.

83678531 is a deficient number, since it is larger than the sum of its proper divisors (3729853).

83678531 is a wasteful number, since it uses less digits than its factorization.

83678531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3841.

The product of its digits is 120960, while the sum is 41.

The square root of 83678531 is about 9147.5970068647. The cubic root of 83678531 is about 437.3925173787.

The spelling of 83678531 in words is "eighty-three million, six hundred seventy-eight thousand, five hundred thirty-one".