78001367 has 4 divisors (see below), whose sum is σ = 78123696. Its totient is φ = 77879040.

The previous prime is 78001307. The next prime is 78001409. The reversal of 78001367 is 76310087.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-78001367 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 (78001307) 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, 60203 + ... + 61484.

It is an arithmetic number, because the mean of its divisors is an integer number (19530924).

Almost surely, 2^78001367 is an apocalyptic number.

78001367 is a deficient number, since it is larger than the sum of its proper divisors (122329).

78001367 is a wasteful number, since it uses less digits than its factorization.

78001367 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122328.

The product of its (nonzero) digits is 7056, while the sum is 32.

The square root of 78001367 is about 8831.8382571241. The cubic root of 78001367 is about 427.2683641913.

The spelling of 78001367 in words is "seventy-eight million, one thousand, three hundred sixty-seven".