80783837 has 2 divisors, whose sum is σ = 80783838. Its totient is φ = 80783836.

The previous prime is 80783767. The next prime is 80783863. The reversal of 80783837 is 73838708.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73633561 + 7150276 = 8581^2 + 2674^2 .

It is a cyclic number.

It is not a de Polignac number, because 80783837 - 2¹⁶ = 80718301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80783867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40391918 + 40391919.

It is an arithmetic number, because the mean of its divisors is an integer number (40391919).

Almost surely, 2^80783837 is an apocalyptic number.

It is an amenable number.

80783837 is a deficient number, since it is larger than the sum of its proper divisors (1).

80783837 is an equidigital number, since it uses as much as digits as its factorization.

80783837 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 225792, while the sum is 44.

The square root of 80783837 is about 8987.9829216571. The cubic root of 80783837 is about 432.2896380851.

The spelling of 80783837 in words is "eighty million, seven hundred eighty-three thousand, eight hundred thirty-seven".