73543974 has 16 divisors (see below), whose sum is σ = 168100608. Its totient is φ = 21012552.

The previous prime is 73543933. The next prime is 73543991. The reversal of 73543974 is 47934537.

It is a super-3 number, since 3×73543974³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 1751047 = 73543974 / (7 + 3 + 5 + 4 + 3 + 9 + 7 + 4).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 875482 + ... + 875565.

It is an arithmetic number, because the mean of its divisors is an integer number (10506288).

Almost surely, 2^73543974 is an apocalyptic number.

73543974 is an abundant number, since it is smaller than the sum of its proper divisors (94556634).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

73543974 is a wasteful number, since it uses less digits than its factorization.

73543974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1751059.

The product of its digits is 317520, while the sum is 42.

The square root of 73543974 is about 8575.7783320233. The cubic root of 73543974 is about 418.9694575816.

The spelling of 73543974 in words is "seventy-three million, five hundred forty-three thousand, nine hundred seventy-four".