78795901 has 8 divisors (see below), whose sum is σ = 83532600. Its totient is φ = 74070528.

The previous prime is 78795839. The next prime is 78795911. The reversal of 78795901 is 10959787.

It can be written as a sum of positive squares in 4 ways, for example, as 60047001 + 18748900 = 7749^2 + 4330^2 .

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 78795901 - 2⁹ = 78795389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78795911) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14625 + ... + 19273.

It is an arithmetic number, because the mean of its divisors is an integer number (10441575).

Almost surely, 2^78795901 is an apocalyptic number.

It is an amenable number.

78795901 is a deficient number, since it is larger than the sum of its proper divisors (4736699).

78795901 is a wasteful number, since it uses less digits than its factorization.

78795901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5663.

The product of its (nonzero) digits is 158760, while the sum is 46.

The square root of 78795901 is about 8876.7055262637. The cubic root of 78795901 is about 428.7142066241.

The spelling of 78795901 in words is "seventy-eight million, seven hundred ninety-five thousand, nine hundred one".