74097919 has 4 divisors (see below), whose sum is σ = 84683344. Its totient is φ = 63512496.

The previous prime is 74097899. The next prime is 74097931. The reversal of 74097919 is 91979047.

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

It is a cyclic number.

It is not a de Polignac number, because 74097919 - 2¹¹ = 74095871 is a prime.

It is a super-2 number, since 2×74097919² = 10981003200261122, 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 (74097949) 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, 5292702 + ... + 5292715.

It is an arithmetic number, because the mean of its divisors is an integer number (21170836).

Almost surely, 2^74097919 is an apocalyptic number.

74097919 is a deficient number, since it is larger than the sum of its proper divisors (10585425).

74097919 is a wasteful number, since it uses less digits than its factorization.

74097919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10585424.

The product of its (nonzero) digits is 142884, while the sum is 46.

The square root of 74097919 is about 8608.0148117902. The cubic root of 74097919 is about 420.0187425498.

The spelling of 74097919 in words is "seventy-four million, ninety-seven thousand, nine hundred nineteen".