78397348 has 12 divisors (see below), whose sum is σ = 139128192. Its totient is φ = 38646440.

The previous prime is 78397337. The next prime is 78397351. The reversal of 78397348 is 84379387.

It is a super-2 number, since 2×78397348² = 12292288346866208, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137740 + ... + 138307.

It is an arithmetic number, because the mean of its divisors is an integer number (11594016).

Almost surely, 2^78397348 is an apocalyptic number.

It is an amenable number.

78397348 is a deficient number, since it is larger than the sum of its proper divisors (60730844).

78397348 is a wasteful number, since it uses less digits than its factorization.

78397348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276122 (or 276120 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 49.

The square root of 78397348 is about 8854.2276907701. The cubic root of 78397348 is about 427.9901663097.

The spelling of 78397348 in words is "seventy-eight million, three hundred ninety-seven thousand, three hundred forty-eight".