78950903 has 4 divisors (see below), whose sum is σ = 78969360. Its totient is φ = 78932448.

The previous prime is 78950891. The next prime is 78950917. The reversal of 78950903 is 30905987.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 78950903 - 2¹⁰ = 78949879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78956903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 878 + ... + 12596.

It is an arithmetic number, because the mean of its divisors is an integer number (19742340).

Almost surely, 2^78950903 is an apocalyptic number.

78950903 is a deficient number, since it is larger than the sum of its proper divisors (18457).

78950903 is a wasteful number, since it uses less digits than its factorization.

78950903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18456.

The product of its (nonzero) digits is 68040, while the sum is 41.

The square root of 78950903 is about 8885.4320660281. The cubic root of 78950903 is about 428.9951350868.

The spelling of 78950903 in words is "seventy-eight million, nine hundred fifty thousand, nine hundred three".