78313099 has 8 divisors (see below), whose sum is σ = 80962560. Its totient is φ = 75671400.

The previous prime is 78313093. The next prime is 78313129. The reversal of 78313099 is 99031387.

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 78313099 - 2⁹ = 78312587 is a prime.

It is a super-2 number, since 2×78313099² = 12265882949967602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78313093) 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, 24504 + ... + 27514.

It is an arithmetic number, because the mean of its divisors is an integer number (10120320).

Almost surely, 2^78313099 is an apocalyptic number.

78313099 is a deficient number, since it is larger than the sum of its proper divisors (2649461).

78313099 is a wasteful number, since it uses less digits than its factorization.

78313099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3881.

The product of its (nonzero) digits is 40824, while the sum is 40.

The square root of 78313099 is about 8849.4688541177. The cubic root of 78313099 is about 427.8367994398.

The spelling of 78313099 in words is "seventy-eight million, three hundred thirteen thousand, ninety-nine".