74503919 has 4 divisors (see below), whose sum is σ = 85147344. Its totient is φ = 63860496.

The previous prime is 74503901. The next prime is 74503967. The reversal of 74503919 is 91930547.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 74503919 - 2¹² = 74499823 is a prime.

It is a super-5 number, since 5×74503919⁵ (a number of 41 digits) contains 55555 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74508919) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5321702 + ... + 5321715.

It is an arithmetic number, because the mean of its divisors is an integer number (21286836).

Almost surely, 2^74503919 is an apocalyptic number.

74503919 is a deficient number, since it is larger than the sum of its proper divisors (10643425).

74503919 is a wasteful number, since it uses less digits than its factorization.

74503919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10643424.

The product of its (nonzero) digits is 34020, while the sum is 38.

The square root of 74503919 is about 8631.5652694051. The cubic root of 74503919 is about 420.7844730081.

The spelling of 74503919 in words is "seventy-four million, five hundred three thousand, nine hundred nineteen".