74291085 has 24 divisors (see below), whose sum is σ = 140478624. Its totient is φ = 36019680.

The previous prime is 74290991. The next prime is 74291093. The reversal of 74291085 is 58019247.

It is not a de Polignac number, because 74291085 - 2⁸ = 74290829 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 74547 + ... + 75536.

It is an arithmetic number, because the mean of its divisors is an integer number (5853276).

Almost surely, 2^74291085 is an apocalyptic number.

It is an amenable number.

74291085 is a deficient number, since it is larger than the sum of its proper divisors (66187539).

74291085 is a wasteful number, since it uses less digits than its factorization.

74291085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150105 (or 150102 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 74291085 is about 8619.2276336108. The cubic root of 74291085 is about 420.3834083921.

The spelling of 74291085 in words is "seventy-four million, two hundred ninety-one thousand, eighty-five".