73974909 has 16 divisors (see below), whose sum is σ = 101492352. Its totient is φ = 47905728.

The previous prime is 73974907. The next prime is 73974919. The reversal of 73974909 is 90947937.

It is not a de Polignac number, because 73974909 - 2¹ = 73974907 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73974907) 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 15 ways as a sum of consecutive naturals, for example, 14119 + ... + 18635.

It is an arithmetic number, because the mean of its divisors is an integer number (6343272).

Almost surely, 2^73974909 is an apocalyptic number.

It is an amenable number.

73974909 is a deficient number, since it is larger than the sum of its proper divisors (27517443).

73974909 is a wasteful number, since it uses less digits than its factorization.

73974909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4676.

The product of its (nonzero) digits is 428652, while the sum is 48.

The square root of 73974909 is about 8600.8667586471. The cubic root of 73974909 is about 419.7861893592.

The spelling of 73974909 in words is "seventy-three million, nine hundred seventy-four thousand, nine hundred nine".