74029891 has 8 divisors (see below), whose sum is σ = 82296704. Its totient is φ = 66130560.

The previous prime is 74029889. The next prime is 74029897. The reversal of 74029891 is 19892047.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 74029891 - 2¹ = 74029889 is a prime.

It is a super-2 number, since 2×74029891² = 10960849522943762, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74029897) 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 7 ways as a sum of consecutive naturals, for example, 91446 + ... + 92251.

It is an arithmetic number, because the mean of its divisors is an integer number (10287088).

Almost surely, 2^74029891 is an apocalyptic number.

74029891 is a deficient number, since it is larger than the sum of its proper divisors (8266813).

74029891 is a wasteful number, since it uses less digits than its factorization.

74029891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183741.

The product of its (nonzero) digits is 36288, while the sum is 40.

The square root of 74029891 is about 8604.0624707170. The cubic root of 74029891 is about 419.8901659132.

The spelling of 74029891 in words is "seventy-four million, twenty-nine thousand, eight hundred ninety-one".