74728423 has 16 divisors (see below), whose sum is σ = 94487040. Its totient is φ = 57405600.

The previous prime is 74728411. The next prime is 74728429. The reversal of 74728423 is 32482747.

It is not a de Polignac number, because 74728423 - 2²⁵ = 41173991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74728429) 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, 1368 + ... + 12301.

It is an arithmetic number, because the mean of its divisors is an integer number (5905440).

Almost surely, 2^74728423 is an apocalyptic number.

74728423 is a deficient number, since it is larger than the sum of its proper divisors (19758617).

74728423 is a wasteful number, since it uses less digits than its factorization.

74728423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13758.

The product of its digits is 75264, while the sum is 37.

The square root of 74728423 is about 8644.5603127053. The cubic root of 74728423 is about 421.2067016638.

The spelling of 74728423 in words is "seventy-four million, seven hundred twenty-eight thousand, four hundred twenty-three".