78348367 has 2 divisors, whose sum is σ = 78348368. Its totient is φ = 78348366.

The previous prime is 78348353. The next prime is 78348371. The reversal of 78348367 is 76384387.

It is a strong prime.

It is an emirp because it is prime and its reverse (76384387) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 78348367 - 2⁷ = 78348239 is a prime.

It is a super-2 number, since 2×78348367² = 12276933223133378, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78348317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39174183 + 39174184.

It is an arithmetic number, because the mean of its divisors is an integer number (39174184).

Almost surely, 2^78348367 is an apocalyptic number.

78348367 is a deficient number, since it is larger than the sum of its proper divisors (1).

78348367 is an equidigital number, since it uses as much as digits as its factorization.

78348367 is an evil number, because the sum of its binary digits is even.

The product of its digits is 677376, while the sum is 46.

The square root of 78348367 is about 8851.4612917868. The cubic root of 78348367 is about 427.9010146814.

The spelling of 78348367 in words is "seventy-eight million, three hundred forty-eight thousand, three hundred sixty-seven".