77798794 has 8 divisors (see below), whose sum is σ = 116759808. Its totient is φ = 38878860.

The previous prime is 77798789. The next prime is 77798797. The reversal of 77798794 is 49789777.

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

It is not an unprimeable number, because it can be changed into a prime (77798797) 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, 4992 + ... + 13435.

It is an arithmetic number, because the mean of its divisors is an integer number (14594976).

Almost surely, 2^77798794 is an apocalyptic number.

77798794 is a deficient number, since it is larger than the sum of its proper divisors (38961014).

77798794 is a wasteful number, since it uses less digits than its factorization.

77798794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20540.

The product of its digits is 6223392, while the sum is 58.

The square root of 77798794 is about 8820.3624642075. The cubic root of 77798794 is about 426.8981652520.

The spelling of 77798794 in words is "seventy-seven million, seven hundred ninety-eight thousand, seven hundred ninety-four".