74085007 has 4 divisors (see below), whose sum is σ = 74102256. Its totient is φ = 74067760.

The previous prime is 74084993. The next prime is 74085013. The reversal of 74085007 is 70058047.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 70058047 = 31 ⋅2259937.

It is a cyclic number.

It is not a de Polignac number, because 74085007 - 2¹¹ = 74082959 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 74085007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74085107) 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, 3507 + ... + 12667.

It is an arithmetic number, because the mean of its divisors is an integer number (18525564).

Almost surely, 2^74085007 is an apocalyptic number.

74085007 is a deficient number, since it is larger than the sum of its proper divisors (17249).

74085007 is an equidigital number, since it uses as much as digits as its factorization.

74085007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17248.

The product of its (nonzero) digits is 7840, while the sum is 31.

The square root of 74085007 is about 8607.2647804050. The cubic root of 74085007 is about 419.9943442171.

The spelling of 74085007 in words is "seventy-four million, eighty-five thousand, seven".