78074017 has 8 divisors (see below), whose sum is σ = 89362112. Its totient is φ = 66819600.

The previous prime is 78073999. The next prime is 78074023. The reversal of 78074017 is 71047087.

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 78074017 - 2⁷ = 78073889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (78074317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3234 + ... + 12907.

It is an arithmetic number, because the mean of its divisors is an integer number (11170264).

Almost surely, 2^78074017 is an apocalyptic number.

It is an amenable number.

78074017 is a deficient number, since it is larger than the sum of its proper divisors (11288095).

78074017 is a wasteful number, since it uses less digits than its factorization.

78074017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16839.

The product of its (nonzero) digits is 10976, while the sum is 34.

The square root of 78074017 is about 8835.9502601588. The cubic root of 78074017 is about 427.4009747497.

The spelling of 78074017 in words is "seventy-eight million, seventy-four thousand, seventeen".