78995603 has 2 divisors, whose sum is σ = 78995604. Its totient is φ = 78995602.

The previous prime is 78995573. The next prime is 78995627. The reversal of 78995603 is 30659987.

It is a strong prime.

It is an emirp because it is prime and its reverse (30659987) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 78995603 - 2²⁶ = 11886739 is a prime.

It is not a weakly prime, because it can be changed into another prime (78995663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39497801 + 39497802.

It is an arithmetic number, because the mean of its divisors is an integer number (39497802).

Almost surely, 2^78995603 is an apocalyptic number.

78995603 is a deficient number, since it is larger than the sum of its proper divisors (1).

78995603 is an equidigital number, since it uses as much as digits as its factorization.

78995603 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 408240, while the sum is 47.

The square root of 78995603 is about 8887.9470632987. The cubic root of 78995603 is about 429.0760818691.

The spelling of 78995603 in words is "seventy-eight million, nine hundred ninety-five thousand, six hundred three".