83788427 has 16 divisors (see below), whose sum is σ = 90979200. Its totient is φ = 76876800.

The previous prime is 83788403. The next prime is 83788429. The reversal of 83788427 is 72488738.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 83788427 - 2⁶ = 83788363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83788429) 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, 119177 + ... + 119877.

It is an arithmetic number, because the mean of its divisors is an integer number (5686200).

Almost surely, 2^83788427 is an apocalyptic number.

83788427 is a deficient number, since it is larger than the sum of its proper divisors (7190773).

83788427 is a wasteful number, since it uses less digits than its factorization.

83788427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 886.

The product of its digits is 602112, while the sum is 47.

The square root of 83788427 is about 9153.6018593775. The cubic root of 83788427 is about 437.5839111976.

The spelling of 83788427 in words is "eighty-three million, seven hundred eighty-eight thousand, four hundred twenty-seven".