78625349 has 4 divisors (see below), whose sum is σ = 85773120. Its totient is φ = 71477580.

The previous prime is 78625321. The next prime is 78625361. The reversal of 78625349 is 94352687.

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 a de Polignac number, because none of the positive numbers 2^k-78625349 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 (78625649) 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, 3573869 + ... + 3573890.

It is an arithmetic number, because the mean of its divisors is an integer number (21443280).

Almost surely, 2^78625349 is an apocalyptic number.

It is an amenable number.

78625349 is a deficient number, since it is larger than the sum of its proper divisors (7147771).

78625349 is a wasteful number, since it uses less digits than its factorization.

78625349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7147770.

The product of its digits is 362880, while the sum is 44.

The square root of 78625349 is about 8867.0936050095. The cubic root of 78625349 is about 428.4046690208.

The spelling of 78625349 in words is "seventy-eight million, six hundred twenty-five thousand, three hundred forty-nine".