78950705 has 8 divisors (see below), whose sum is σ = 95222952. Its totient is φ = 62839168.

The previous prime is 78950671. The next prime is 78950713. The reversal of 78950705 is 50705987.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 56445169 + 22505536 = 7513^2 + 4744^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 78950705 - 2²² = 74756401 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39092 + ... + 41061.

It is an arithmetic number, because the mean of its divisors is an integer number (11902869).

Almost surely, 2^78950705 is an apocalyptic number.

It is an amenable number.

78950705 is a deficient number, since it is larger than the sum of its proper divisors (16272247).

78950705 is a wasteful number, since it uses less digits than its factorization.

78950705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80355.

The product of its (nonzero) digits is 88200, while the sum is 41.

The square root of 78950705 is about 8885.4209241881. The cubic root of 78950705 is about 428.9947764626.

The spelling of 78950705 in words is "seventy-eight million, nine hundred fifty thousand, seven hundred five".