78295349 has 6 divisors (see below), whose sum is σ = 86060310. Its totient is φ = 71177480.

The previous prime is 78295339. The next prime is 78295403. The reversal of 78295349 is 94359287.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 41692849 + 36602500 = 6457^2 + 6050^2 .

It is not a de Polignac number, because 78295349 - 2⁸ = 78295093 is a prime.

It is a super-2 number, since 2×78295349² = 12260323350063602, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78295309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 323414 + ... + 323655.

It is an arithmetic number, because the mean of its divisors is an integer number (14343385).

Almost surely, 2^78295349 is an apocalyptic number.

It is an amenable number.

78295349 is a deficient number, since it is larger than the sum of its proper divisors (7764961).

78295349 is a wasteful number, since it uses less digits than its factorization.

78295349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 647091 (or 647080 counting only the distinct ones).

The product of its digits is 544320, while the sum is 47.

The square root of 78295349 is about 8848.4659122359. The cubic root of 78295349 is about 427.8044733151.

The spelling of 78295349 in words is "seventy-eight million, two hundred ninety-five thousand, three hundred forty-nine".