74029691 has 4 divisors (see below), whose sum is σ = 74225400. Its totient is φ = 73833984.

The previous prime is 74029649. The next prime is 74029693. The reversal of 74029691 is 19692047.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 74029691 - 2¹⁰ = 74028667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74029693) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97286 + ... + 98043.

It is an arithmetic number, because the mean of its divisors is an integer number (18556350).

Almost surely, 2^74029691 is an apocalyptic number.

74029691 is a deficient number, since it is larger than the sum of its proper divisors (195709).

74029691 is a wasteful number, since it uses less digits than its factorization.

74029691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195708.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 74029691 is about 8604.0508482923. The cubic root of 74029691 is about 419.8897877862.

The spelling of 74029691 in words is "seventy-four million, twenty-nine thousand, six hundred ninety-one".