74087091 has 24 divisors (see below), whose sum is σ = 115650080. Its totient is φ = 45432576.

The previous prime is 74087089. The next prime is 74087113. The reversal of 74087091 is 19078047.

It is not a de Polignac number, because 74087091 - 2¹ = 74087089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (74087051) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38490 + ... + 40368.

Almost surely, 2^74087091 is an apocalyptic number.

74087091 is a deficient number, since it is larger than the sum of its proper divisors (41562989).

74087091 is a wasteful number, since it uses less digits than its factorization.

74087091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2235 (or 2232 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 36.

The square root of 74087091 is about 8607.3858400794. The cubic root of 74087091 is about 419.9982823059.

The spelling of 74087091 in words is "seventy-four million, eighty-seven thousand, ninety-one".