78231067 has 8 divisors (see below), whose sum is σ = 81043200. Its totient is φ = 75426624.

The previous prime is 78231053. The next prime is 78231103. The reversal of 78231067 is 76013287.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 78231067 - 2⁷ = 78230939 is a prime.

It is a super-2 number, since 2×78231067² = 12240199687916978, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78231047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25734 + ... + 28612.

It is an arithmetic number, because the mean of its divisors is an integer number (10130400).

Almost surely, 2^78231067 is an apocalyptic number.

78231067 is a deficient number, since it is larger than the sum of its proper divisors (2812133).

78231067 is a wasteful number, since it uses less digits than its factorization.

78231067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3845.

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 78231067 is about 8844.8327853046. The cubic root of 78231067 is about 427.6873626694.

The spelling of 78231067 in words is "seventy-eight million, two hundred thirty-one thousand, sixty-seven".