78203822 has 8 divisors (see below), whose sum is σ = 117599472. Its totient is φ = 39004000.

The previous prime is 78203813. The next prime is 78203831. The reversal of 78203822 is 22830287.

It is an interprime number because it is at equal distance from previous prime (78203813) and next prime (78203831).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×78203822² = 12231675550815368, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47954 + ... + 49557.

It is an arithmetic number, because the mean of its divisors is an integer number (14699934).

Almost surely, 2^78203822 is an apocalyptic number.

78203822 is a deficient number, since it is larger than the sum of its proper divisors (39395650).

78203822 is a wasteful number, since it uses less digits than its factorization.

78203822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97914.

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 78203822 is about 8843.2924863989. The cubic root of 78203822 is about 427.6377076513.

The spelling of 78203822 in words is "seventy-eight million, two hundred three thousand, eight hundred twenty-two".