78109753 has 8 divisors (see below), whose sum is σ = 78700320. Its totient is φ = 77521920.

The previous prime is 78109721. The next prime is 78109769. The reversal of 78109753 is 35790187.

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 78109753 - 2⁵ = 78109721 is a prime.

It is a super-2 number, since 2×78109753² = 12202267027442018, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78109783) 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, 125878 + ... + 126496.

It is an arithmetic number, because the mean of its divisors is an integer number (9837540).

Almost surely, 2^78109753 is an apocalyptic number.

It is an amenable number.

78109753 is a deficient number, since it is larger than the sum of its proper divisors (590567).

78109753 is a wasteful number, since it uses less digits than its factorization.

78109753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1367.

The product of its (nonzero) digits is 52920, while the sum is 40.

The square root of 78109753 is about 8837.9722221786. The cubic root of 78109753 is about 427.4661747230.

The spelling of 78109753 in words is "seventy-eight million, one hundred nine thousand, seven hundred fifty-three".