78789601 has 8 divisors (see below), whose sum is σ = 86404608. Its totient is φ = 71250000.

The previous prime is 78789587. The next prime is 78789619. The reversal of 78789601 is 10698787.

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 78789601 - 2¹⁷ = 78658529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78789661) 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, 16650 + ... + 20851.

It is an arithmetic number, because the mean of its divisors is an integer number (10800576).

Almost surely, 2^78789601 is an apocalyptic number.

It is an amenable number.

78789601 is a deficient number, since it is larger than the sum of its proper divisors (7615007).

78789601 is a wasteful number, since it uses less digits than its factorization.

78789601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37703.

The product of its (nonzero) digits is 169344, while the sum is 46.

The square root of 78789601 is about 8876.3506577872. The cubic root of 78789601 is about 428.7027806005.

The spelling of 78789601 in words is "seventy-eight million, seven hundred eighty-nine thousand, six hundred one".