74729473 has 16 divisors (see below), whose sum is σ = 93018240. Its totient is φ = 58455936.

The previous prime is 74729471. The next prime is 74729509. The reversal of 74729473 is 37492747.

It is not a de Polignac number, because 74729473 - 2¹ = 74729471 is a prime.

It is not an unprimeable number, because it can be changed into a prime (74729471) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3486 + ... + 12712.

It is an arithmetic number, because the mean of its divisors is an integer number (5813640).

Almost surely, 2^74729473 is an apocalyptic number.

It is an amenable number.

74729473 is a deficient number, since it is larger than the sum of its proper divisors (18288767).

74729473 is a wasteful number, since it uses less digits than its factorization.

74729473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9336.

The product of its digits is 296352, while the sum is 43.

The square root of 74729473 is about 8644.6210443258. The cubic root of 74729473 is about 421.2086744293.

The spelling of 74729473 in words is "seventy-four million, seven hundred twenty-nine thousand, four hundred seventy-three".