74669091 has 12 divisors (see below), whose sum is σ = 115813512. Its totient is φ = 42667968.

The previous prime is 74669081. The next prime is 74669093. The reversal of 74669091 is 19096647.

It is not a de Polignac number, because 74669091 - 2¹⁴ = 74652707 is a prime.

It is not an unprimeable number, because it can be changed into a prime (74669093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 253830 + ... + 254123.

It is an arithmetic number, because the mean of its divisors is an integer number (9651126).

Almost surely, 2^74669091 is an apocalyptic number.

74669091 is a deficient number, since it is larger than the sum of its proper divisors (41144421).

74669091 is a wasteful number, since it uses less digits than its factorization.

74669091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507970 (or 507963 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 74669091 is about 8641.1278777715. The cubic root of 74669091 is about 421.0951972233.

The spelling of 74669091 in words is "seventy-four million, six hundred sixty-nine thousand, ninety-one".