78004069 has 8 divisors (see below), whose sum is σ = 91641312. Its totient is φ = 65457840.

The previous prime is 78004061. The next prime is 78004097. The reversal of 78004069 is 96040087.

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 78004069 - 2³ = 78004061 is a prime.

It is a super-2 number, since 2×78004069² = 12169269561113522, 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 (78004061) 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, 272599 + ... + 272884.

It is an arithmetic number, because the mean of its divisors is an integer number (11455164).

Almost surely, 2^78004069 is an apocalyptic number.

It is an amenable number.

78004069 is a deficient number, since it is larger than the sum of its proper divisors (13637243).

78004069 is a wasteful number, since it uses less digits than its factorization.

78004069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 545507.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 78004069 is about 8831.9912250862. The cubic root of 78004069 is about 427.2732977193.

The spelling of 78004069 in words is "seventy-eight million, four thousand, sixty-nine".