83978753 has 2 divisors, whose sum is σ = 83978754. Its totient is φ = 83978752.

The previous prime is 83978749. The next prime is 83978779. The reversal of 83978753 is 35787938.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49674304 + 34304449 = 7048^2 + 5857^2 .

It is a cyclic number.

It is not a de Polignac number, because 83978753 - 2² = 83978749 is a prime.

It is not a weakly prime, because it can be changed into another prime (83978953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41989376 + 41989377.

It is an arithmetic number, because the mean of its divisors is an integer number (41989377).

Almost surely, 2^83978753 is an apocalyptic number.

It is an amenable number.

83978753 is a deficient number, since it is larger than the sum of its proper divisors (1).

83978753 is an equidigital number, since it uses as much as digits as its factorization.

83978753 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1270080, while the sum is 50.

The square root of 83978753 is about 9163.9921977269. The cubic root of 83978753 is about 437.9149856198.

The spelling of 83978753 in words is "eighty-three million, nine hundred seventy-eight thousand, seven hundred fifty-three".