74623541 has 4 divisors (see below), whose sum is σ = 77030784. Its totient is φ = 72216300.

The previous prime is 74623531. The next prime is 74623573. The reversal of 74623541 is 14532647.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 14532647 = 1831 ⋅7937.

It is a cyclic number.

It is not a de Polignac number, because 74623541 - 2¹⁴ = 74607157 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 74623498 and 74623507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74623511) 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 3 ways as a sum of consecutive naturals, for example, 1203575 + ... + 1203636.

It is an arithmetic number, because the mean of its divisors is an integer number (19257696).

Almost surely, 2^74623541 is an apocalyptic number.

It is an amenable number.

74623541 is a deficient number, since it is larger than the sum of its proper divisors (2407243).

74623541 is a wasteful number, since it uses less digits than its factorization.

74623541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2407242.

The product of its digits is 20160, while the sum is 32.

The square root of 74623541 is about 8638.4918243869. The cubic root of 74623541 is about 421.0095536298.

The spelling of 74623541 in words is "seventy-four million, six hundred twenty-three thousand, five hundred forty-one".