78808461 has 8 divisors (see below), whose sum is σ = 105391104. Its totient is φ = 52382400.

The previous prime is 78808459. The next prime is 78808489. The reversal of 78808461 is 16480887.

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

It is not a de Polignac number, because 78808461 - 2¹ = 78808459 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78808451) 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, 37965 + ... + 39986.

It is an arithmetic number, because the mean of its divisors is an integer number (13173888).

Almost surely, 2^78808461 is an apocalyptic number.

It is an amenable number.

78808461 is a deficient number, since it is larger than the sum of its proper divisors (26582643).

78808461 is a wasteful number, since it uses less digits than its factorization.

78808461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78291.

The product of its (nonzero) digits is 86016, while the sum is 42.

The square root of 78808461 is about 8877.4129677514. The cubic root of 78808461 is about 428.7369843080.

The spelling of 78808461 in words is "seventy-eight million, eight hundred eight thousand, four hundred sixty-one".