83980747 has 2 divisors, whose sum is σ = 83980748. Its totient is φ = 83980746.

The previous prime is 83980727. The next prime is 83980753. The reversal of 83980747 is 74708938.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 83980747 - 2¹⁵ = 83947979 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 83980697 and 83980706.

It is not a weakly prime, because it can be changed into another prime (83980727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41990373 + 41990374.

It is an arithmetic number, because the mean of its divisors is an integer number (41990374).

Almost surely, 2^83980747 is an apocalyptic number.

83980747 is a deficient number, since it is larger than the sum of its proper divisors (1).

83980747 is an equidigital number, since it uses as much as digits as its factorization.

83980747 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 338688, while the sum is 46.

The square root of 83980747 is about 9164.1009924597. The cubic root of 83980747 is about 437.9184515583.

The spelling of 83980747 in words is "eighty-three million, nine hundred eighty thousand, seven hundred forty-seven".