78900499 has 2 divisors, whose sum is σ = 78900500. Its totient is φ = 78900498.

The previous prime is 78900469. The next prime is 78900529. The reversal of 78900499 is 99400987.

It is a balanced prime because it is at equal distance from previous prime (78900469) and next prime (78900529).

It is a cyclic number.

It is not a de Polignac number, because 78900499 - 2⁵ = 78900467 is a prime.

It is not a weakly prime, because it can be changed into another prime (78900439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39450249 + 39450250.

It is an arithmetic number, because the mean of its divisors is an integer number (39450250).

Almost surely, 2^78900499 is an apocalyptic number.

78900499 is a deficient number, since it is larger than the sum of its proper divisors (1).

78900499 is an equidigital number, since it uses as much as digits as its factorization.

78900499 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 163296, while the sum is 46.

The square root of 78900499 is about 8882.5952851630. The cubic root of 78900499 is about 428.9038223294.

The spelling of 78900499 in words is "seventy-eight million, nine hundred thousand, four hundred ninety-nine".