78465299 has 8 divisors (see below), whose sum is σ = 86274048. Its totient is φ = 70769160.

The previous prime is 78465293. The next prime is 78465301. The reversal of 78465299 is 99256487.

It is a happy number.

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

It is not a de Polignac number, because 78465299 - 2²⁴ = 61688083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78465293) 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, 26687 + ... + 29480.

It is an arithmetic number, because the mean of its divisors is an integer number (10784256).

Almost surely, 2^78465299 is an apocalyptic number.

78465299 is a deficient number, since it is larger than the sum of its proper divisors (7808749).

78465299 is a wasteful number, since it uses less digits than its factorization.

78465299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56305.

The product of its digits is 1088640, while the sum is 50.

The square root of 78465299 is about 8858.0640661490. The cubic root of 78465299 is about 428.1137842729.

The spelling of 78465299 in words is "seventy-eight million, four hundred sixty-five thousand, two hundred ninety-nine".