74820423 has 16 divisors (see below), whose sum is σ = 105668480. Its totient is φ = 46959264.

The previous prime is 74820419. The next prime is 74820481. The reversal of 74820423 is 32402847.

It is not a de Polignac number, because 74820423 - 2² = 74820419 is a prime.

It is a super-3 number, since 3×74820423³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74820413) 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, 5265 + ... + 13317.

It is an arithmetic number, because the mean of its divisors is an integer number (6604280).

Almost surely, 2^74820423 is an apocalyptic number.

74820423 is a deficient number, since it is larger than the sum of its proper divisors (30848057).

74820423 is a wasteful number, since it uses less digits than its factorization.

74820423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8238.

The product of its (nonzero) digits is 10752, while the sum is 30.

The square root of 74820423 is about 8649.8799413633. The cubic root of 74820423 is about 421.3794834221.

The spelling of 74820423 in words is "seventy-four million, eight hundred twenty thousand, four hundred twenty-three".