74719919 has 8 divisors (see below), whose sum is σ = 75720528. Its totient is φ = 73725120.

The previous prime is 74719891. The next prime is 74719943. The reversal of 74719919 is 91991747.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 74719919 - 2¹⁶ = 74654383 is a prime.

It is a super-2 number, since 2×74719919² = 11166132590733122, which contains 22 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 (74719969) 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 7 ways as a sum of consecutive naturals, for example, 28379 + ... + 30899.

It is an arithmetic number, because the mean of its divisors is an integer number (9465066).

Almost surely, 2^74719919 is an apocalyptic number.

74719919 is a deficient number, since it is larger than the sum of its proper divisors (1000609).

74719919 is a wasteful number, since it uses less digits than its factorization.

74719919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2905.

The product of its digits is 142884, while the sum is 47.

The square root of 74719919 is about 8644.0684286972. The cubic root of 74719919 is about 421.1907234611.

The spelling of 74719919 in words is "seventy-four million, seven hundred nineteen thousand, nine hundred nineteen".