83772893 has 2 divisors, whose sum is σ = 83772894. Its totient is φ = 83772892.

The previous prime is 83772869. The next prime is 83772911. The reversal of 83772893 is 39827738.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50098084 + 33674809 = 7078^2 + 5803^2 .

It is a cyclic number.

It is not a de Polignac number, because 83772893 - 2¹⁴ = 83756509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83772803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41886446 + 41886447.

It is an arithmetic number, because the mean of its divisors is an integer number (41886447).

Almost surely, 2^83772893 is an apocalyptic number.

It is an amenable number.

83772893 is a deficient number, since it is larger than the sum of its proper divisors (1).

83772893 is an equidigital number, since it uses as much as digits as its factorization.

83772893 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 508032, while the sum is 47.

The square root of 83772893 is about 9152.7533016027. The cubic root of 83772893 is about 437.5568674922.

The spelling of 83772893 in words is "eighty-three million, seven hundred seventy-two thousand, eight hundred ninety-three".