78467249 has 8 divisors (see below), whose sum is σ = 89734848. Its totient is φ = 67214160.

The previous prime is 78467239. The next prime is 78467309. The reversal of 78467249 is 94276487.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-78467249 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (78467239) 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, 13154 + ... + 18164.

It is an arithmetic number, because the mean of its divisors is an integer number (11216856).

Almost surely, 2^78467249 is an apocalyptic number.

It is an amenable number.

78467249 is a deficient number, since it is larger than the sum of its proper divisors (11267599).

78467249 is a wasteful number, since it uses less digits than its factorization.

78467249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7255.

The product of its digits is 677376, while the sum is 47.

The square root of 78467249 is about 8858.1741346623. The cubic root of 78467249 is about 428.1173307025.

The spelling of 78467249 in words is "seventy-eight million, four hundred sixty-seven thousand, two hundred forty-nine".