78795946 has 8 divisors (see below), whose sum is σ = 118320804. Its totient is φ = 39355680.

The previous prime is 78795911. The next prime is 78795989. The reversal of 78795946 is 64959787.

It can be written as a sum of positive squares in 2 ways, for example, as 75012921 + 3783025 = 8661^2 + 1945^2 .

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

It is a super-2 number, since 2×78795946² = 12417602212069832, which contains 22 as substring.

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, 18765 + ... + 22576.

Almost surely, 2^78795946 is an apocalyptic number.

78795946 is a deficient number, since it is larger than the sum of its proper divisors (39524858).

78795946 is a wasteful number, since it uses less digits than its factorization.

78795946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42296.

The product of its digits is 3810240, while the sum is 55.

The square root of 78795946 is about 8876.7080609875. The cubic root of 78795946 is about 428.7142882364.

The spelling of 78795946 in words is "seventy-eight million, seven hundred ninety-five thousand, nine hundred forty-six".