78488701 has 4 divisors (see below), whose sum is σ = 79434432. Its totient is φ = 77542972.

The previous prime is 78488689. The next prime is 78488723. The reversal of 78488701 is 10788487.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 78488701 - 2¹³ = 78480509 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 (78488741) 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, 472741 + ... + 472906.

It is an arithmetic number, because the mean of its divisors is an integer number (19858608).

Almost surely, 2^78488701 is an apocalyptic number.

It is an amenable number.

78488701 is a deficient number, since it is larger than the sum of its proper divisors (945731).

78488701 is an equidigital number, since it uses as much as digits as its factorization.

78488701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 945730.

The product of its (nonzero) digits is 100352, while the sum is 43.

The square root of 78488701 is about 8859.3849109292. The cubic root of 78488701 is about 428.1563411869.

The spelling of 78488701 in words is "seventy-eight million, four hundred eighty-eight thousand, seven hundred one".