78797422 has 8 divisors (see below), whose sum is σ = 128941272. Its totient is φ = 35817000.

The previous prime is 78797413. The next prime is 78797479. The reversal of 78797422 is 22479787.

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

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, 1790829 + ... + 1790872.

It is an arithmetic number, because the mean of its divisors is an integer number (16117659).

Almost surely, 2^78797422 is an apocalyptic number.

78797422 is a deficient number, since it is larger than the sum of its proper divisors (50143850).

78797422 is a wasteful number, since it uses less digits than its factorization.

78797422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3581714.

The product of its digits is 395136, while the sum is 46.

The square root of 78797422 is about 8876.7911995270. The cubic root of 78797422 is about 428.7169651014.

The spelling of 78797422 in words is "seventy-eight million, seven hundred ninety-seven thousand, four hundred twenty-two".