74000685 has 32 divisors (see below), whose sum is σ = 129559680. Its totient is φ = 35769600.

The previous prime is 74000671. The next prime is 74000699. The reversal of 74000685 is 58600047.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (74000671) and next prime (74000699).

It is not a de Polignac number, because 74000685 - 2⁴ = 74000669 is a prime.

It is a super-2 number, since 2×74000685² = 10952202760938450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 88851 + ... + 89679.

It is an arithmetic number, because the mean of its divisors is an integer number (4048740).

Almost surely, 2^74000685 is an apocalyptic number.

It is an amenable number.

74000685 is a deficient number, since it is larger than the sum of its proper divisors (55558995).

74000685 is a wasteful number, since it uses less digits than its factorization.

74000685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1389.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 74000685 is about 8602.3650817668. The cubic root of 74000685 is about 419.8349408095.

The spelling of 74000685 in words is "seventy-four million, six hundred eighty-five", and thus it is an aban number.