78809483 has 2 divisors, whose sum is σ = 78809484. Its totient is φ = 78809482.

The previous prime is 78809461. The next prime is 78809573. The reversal of 78809483 is 38490887.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 78809483 - 2¹⁰ = 78808459 is a prime.

It is a super-2 number, since 2×78809483² = 12421869221454578, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (78809453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39404741 + 39404742.

It is an arithmetic number, because the mean of its divisors is an integer number (39404742).

Almost surely, 2^78809483 is an apocalyptic number.

78809483 is a deficient number, since it is larger than the sum of its proper divisors (1).

78809483 is an equidigital number, since it uses as much as digits as its factorization.

78809483 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 387072, while the sum is 47.

The square root of 78809483 is about 8877.4705293794. The cubic root of 78809483 is about 428.7388376086.

The spelling of 78809483 in words is "seventy-eight million, eight hundred nine thousand, four hundred eighty-three".